# Personal preference kit

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Container for astronauts' personal items

[Michael Collins](/source/Michael_Collins_(astronaut))' PPK from the [Apollo 11](/source/Apollo_11) mission

The **Personal Preference Kit** (**PPK**) is a container used to carry the personal items of [astronauts](/source/Astronaut) during the [Gemini](/source/Project_Gemini), [Apollo](/source/Apollo_program), [Space Shuttle](/source/Space_Shuttle_program), and [International Space Station programs](/source/International_Space_Station_program). Items that astronauts choose to carry into space are approved by [NASA](/source/NASA) management and stored in PPKs. Information on the contents of kits are usually kept private by the astronaut, although some contents have been put on display or given as awards to contributors to space programs.

## Purpose

A razor and shaving cream, personal items used by Michael Collins during Apollo 11

[Federal Aviation Regulations](/source/Federal_Aviation_Regulations) as of 2021 define the purpose of Personal Preference Kits as allowing "persons on particular mission to carry personal items for use as mementos";[1] mementos are defined as "flags, patches, insignia, medallions, minor graphics, and similar items of little commercial value".[2] Astronauts were required to submit a [manifest](/source/Manifest_(transportation)) listing the items to be held in their PPKs[3] as well as the ultimate recipients of the items, sixty days prior to their launch date.[4]

Information on the items taken by astronauts is usually kept private.[5] Some personal items have been put on display or given as awards to shuttle workers and [VIPs](/source/VIP).[6]

## Usage

### Gemini program

[Project Gemini](/source/Project_Gemini) astronauts were authorized to take personal items on missions in a 6 in × 7 in (15 cm × 18 cm) nylon [drawstring](/source/Drawstring) bag. Astronaut [Wally Schirra](/source/Wally_Schirra) disclosed the contents of the kit he took on the [Gemini 6A](/source/Gemini_6A) mission, which contained his Navy wings, [hunting license](/source/Hunting_license), and many medals, flags, and patches.[5]

### Apollo program

Pieces of wood and fabric of the 1903 *Wright Flyer* taken to the [Moon](/source/Moon) in Armstrong's PPK

Continuing the usage of PPKs in the Gemini program, crew on [Apollo spaceflights](/source/Apollo_program) were also assigned PPKs in which they could store personal items and souvenirs.[7] The PPKs were made from [Beta cloth](/source/Beta_cloth), a type of fireproof cloth added to [Apollo/Skylab A7L](/source/Apollo%2FSkylab_A7L) space suits and used in other specialized applications.[8][9] A sphere of aluminum taken by [Frank Borman](/source/Frank_Borman) during [Apollo 8](/source/Apollo_8) was later used to strike 200,000 [space-flown medallions](/source/NASA_space-flown_Gemini_and_Apollo_medallions#Apollo_mission_space-flown_Robbins_medallions) distributed to people who contributed to the Apollo program.[5]

In a special arrangement with the [United States Air Force Museum](/source/United_States_Air_Force_Museum), [Neil Armstrong](/source/Neil_Armstrong) brought wood from the propeller and fabric from the wing of the 1903 *[Wright Flyer](/source/Wright_Flyer)*, the first plane to achieve powered flight, in his PPK taken to the [Moon](/source/Moon) on [Apollo 11](/source/Apollo_11).[6][10][11] On the same mission, [Michael Collins](/source/Michael_Collins_(astronaut)) brought the [flag of the United States](/source/Flag_of_the_United_States), the [flag of Washington, D.C.](/source/Flag_of_Washington%2C_D.C.), and the [flag of the Air Force](/source/Flag_of_the_United_States_Air_Force), along with other items in his kit.[5]

During [Apollo 12](/source/Apollo_12), astronauts were given four aluminum copies of the mission plaque that was left on the Moon. When the copies were returned to Earth, one copy was given to NASA engineer [Jack Kinzler](/source/Jack_Kinzler), who created the copies, while the remaining copies were given to crew members [Pete Conrad](/source/Pete_Conrad), [Richard F. Gordon Jr.](/source/Richard_F._Gordon_Jr.), and [Alan Bean](/source/Alan_Bean).[5]

As part of a joint project with the [United States Forest Service](/source/United_States_Forest_Service), about 400 to 500 seeds of [Douglas fir](/source/Douglas_fir), [loblolly pine](/source/Loblolly_pine), [redwood](/source/Redwood), [American sycamore](/source/American_sycamore), and [sweetgum](/source/Sweetgum) trees were stored in small containers in [Stuart Roosa](/source/Stuart_Roosa)'s PPK during the [Apollo 14](/source/Apollo_14) mission. Upon his return to Earth, many of the seeds were germinated. Their [seedlings](/source/Seedling) were planted throughout the United States, Japan, Brazil, and [Switzerland](/source/Switzerland) and grew to be the "[Moon trees](/source/Moon_tree)".[12][13]

### Space Shuttle program

During the era of the [Space Shuttle program](/source/Space_Shuttle_program), astronauts were limited to bringing a maximum of 20 personal items that weighed a total of 3.3 pounds (1.5 kg) and fit into a 5 in × 8 in × 2 in (12.7 cm × 20.3 cm × 5.1 cm) bag.[5] Astronauts were also given an [Official Flight Kit](https://en.wikipedia.org/w/index.php?title=Official_Flight_Kit&action=edit&redlink=1) (OFK) to carry items on the request of professional organizations or foreign governments.[5][14] OFKs have carried larger items such as patches, flags of various countries, and awards that are later presented by an organization to its honorees.[14]

Items taken on space shuttle flights by astronaut [Rhea Seddon](/source/Rhea_Seddon), who flew on three Space Shuttle missions, include a [pennant](/source/Pennant_(sports)) from her university, a [sorority](/source/Sorority) pin, a [baseball cap](/source/Baseball_cap) for a sports team, and a roll of calculator tape marked with the signatures of students from her hometown.[5] In the fatal [STS-107](/source/STS-107) mission, Israeli astronaut [Ilan Ramon](/source/Ilan_Ramon) brought on board [*Columbia*](/source/Space_Shuttle_Columbia) a copy of the pencil drawing *Moon Landscape* by [Petr Ginz](/source/Petr_Ginz), a boy murdered in the [Auschwitz concentration camp](/source/Auschwitz_concentration_camp) during [the Holocaust](/source/The_Holocaust).[15][16]

### International Space Station program

Within the [International Space Station program](/source/International_Space_Station_program), missions utilizing [Soyuz](/source/Soyuz_(spacecraft)) and [SpaceX Crew Dragon](/source/SpaceX_Crew_Dragon) spacecraft both allow 3.3 pounds (1.5 kg) for personal items.[5] Astronauts have frequently taken musical instruments and cameras to the ISS.[5][17]

## References

### Notes

1. **[^](#cite_ref-1)** [14 CFR](/source/Title_14_of_the_Code_of_Federal_Regulations) [1214.604](https://www.ecfr.gov/current/title-14/section-1214.604). Retrieved December 30, 2021.

1. **[^](#cite_ref-2)** [14 CFR](/source/Title_14_of_the_Code_of_Federal_Regulations) [1214.601](https://www.ecfr.gov/current/title-14/section-1214.601). Retrieved December 30, 2021.

1. **[^](#cite_ref-3)** Kluger, Jeffrey (October 12, 2018). ["What Neil Armstrong Biopic First Man Gets Right and Wrong About the Moon Landing"](https://web.archive.org/web/20230329040605/https://time.com/5423099/first-man-moon-landing-neil-armstrong-ryan-gosling/). *Time*. Archived from [the original](https://time.com/5423099/first-man-moon-landing-neil-armstrong-ryan-gosling/) on March 29, 2023. Retrieved January 14, 2020.

1. **[^](#cite_ref-4)** Stewart, Chris (May 7, 2019). ["New batch of Neil Armstrong lunar landing artifacts up for auction"](https://www.daytondailynews.com/news/local/new-batch-neil-armstrong-lunar-landing-artifacts-for-auction/32QBvm2gCm5PURgIdHVtwO/). *[Dayton Daily News](/source/Dayton_Daily_News)*. Retrieved January 14, 2020.

1. ^ [***a***](#cite_ref-NASA.gov_2020_5-0) [***b***](#cite_ref-NASA.gov_2020_5-1) [***c***](#cite_ref-NASA.gov_2020_5-2) [***d***](#cite_ref-NASA.gov_2020_5-3) [***e***](#cite_ref-NASA.gov_2020_5-4) [***f***](#cite_ref-NASA.gov_2020_5-5) [***g***](#cite_ref-NASA.gov_2020_5-6) [***h***](#cite_ref-NASA.gov_2020_5-7) [***i***](#cite_ref-NASA.gov_2020_5-8) [***j***](#cite_ref-NASA.gov_2020_5-9) Patrinos, Thalia, ed. (November 12, 2020). ["The Personal Preference Kit: What Astronauts Take With Them To Space"](https://web.archive.org/web/20230327191856/https://www.nasa.gov/feature/the-personal-preference-kit-what-astronauts-take-with-them-to-space/). [NASA](/source/NASA). Archived from [the original](https://www.nasa.gov/feature/the-personal-preference-kit-what-astronauts-take-with-them-to-space) on March 27, 2023. Retrieved December 30, 2021.

1. ^ [***a***](#cite_ref-NASA.gov_2007_6-0) [***b***](#cite_ref-NASA.gov_2007_6-1) Siceloff, Steven (October 24, 2007). ["Items Taken into Space Reflect Accomplishments on Earth"](https://web.archive.org/web/20201109220754/https://www.nasa.gov/mission_pages/shuttle/behindscenes/Whatsgoingup.html). [NASA](/source/NASA). Archived from [the original](https://www.nasa.gov/mission_pages/shuttle/behindscenes/Whatsgoingup.html) on November 9, 2020. Retrieved January 11, 2020.

1. **[^](#cite_ref-7)** ["Kit, Personal Preference, Apollo 11"](https://web.archive.org/web/20190424122946/https://airandspace.si.edu/collection-objects/kit-personal-preference-apollo-11). Smithsonian Institution. Archived from [the original](https://airandspace.si.edu/collection-objects/kit-personal-preference-apollo-11) on April 24, 2019. Retrieved August 10, 2019.

1. **[^](#cite_ref-FOOTNOTEWordenFrench2012139_8-0)** [Worden & French 2012](#CITEREFWordenFrench2012), p. 139.

1. **[^](#cite_ref-FOOTNOTEJurek2019183_9-0)** [Jurek 2019](#CITEREFJurek2019), p. 183.

1. **[^](#cite_ref-10)** Waxman, Olivia B. ["When Neil Armstrong Went to the Moon, He Brought Souvenirs of the Wright Brothers' Flight. Now They're for Sale"](https://web.archive.org/web/20230626090421/https://time.com/5418950/first-man-neil-armstrong-wright-flyer/). *Time*. Archived from [the original](https://time.com/5418950/first-man-neil-armstrong-wright-flyer/) on June 26, 2023. Retrieved January 11, 2020.

1. **[^](#cite_ref-FOOTNOTEHansen2005p._527:_"He_is_most_clear_about,_and_most_proud_of,_the_pieces_of_the_historic_Wright_Flyer_that_he_took_to_the_moon._Under_a_special_arrangement_with_the_U.S._Air_Force_Museum_in_Dayton,_he_took_in_his_LM_PPK_a_piece_of_wood_from_the_Wright_brothers'_1903_airplane's_left_propeller_and_a_piece_of_muslin_fabric_(8x13_inches)_from_its_upper_left_wing."_11-0)** [Hansen 2005](#CITEREFHansen2005), p. 527: "He is most clear about, and most proud of, the pieces of the historic Wright Flyer that he took to the moon. Under a special arrangement with the U.S. Air Force Museum in Dayton, he took in his LM PPK a piece of wood from the Wright brothers' 1903 airplane's left propeller and a piece of muslin fabric (8x13 inches) from its upper left wing.".

1. **[^](#cite_ref-12)** Lehman, Eben (February 17, 2011). ["Houston, We Have Moon Trees"](https://foresthistory.org/houston-we-have-moon-trees/). [Forest History Society](/source/Forest_History_Society). Retrieved January 11, 2020.

1. **[^](#cite_ref-13)** Williams, David R. ["The Moon Trees"](https://web.archive.org/web/20201019051914/https://nssdc.gsfc.nasa.gov/planetary/lunar/moon_tree.html). [NASA](/source/NASA). Archived from [the original](https://nssdc.gsfc.nasa.gov/planetary/lunar/moon_tree.html) on October 19, 2020. Retrieved January 11, 2020.

1. ^ [***a***](#cite_ref-FOOTNOTESeedhouse2010218_14-0) [***b***](#cite_ref-FOOTNOTESeedhouse2010218_14-1) [Seedhouse 2010](#CITEREFSeedhouse2010), pp. 218.

1. **[^](#cite_ref-15)** Borowski, Susan (February 8, 2013). ["Ilan Ramon took tragic reminders, hope into space"](https://www.aaas.org/ilan-ramon-took-tragic-reminders-hope-space). [American Association for the Advancement of Science](/source/American_Association_for_the_Advancement_of_Science). Retrieved December 30, 2021.

1. **[^](#cite_ref-16)** Goldberg, Ari Ben (November 25, 2002). ["Celebrating the Sabbath - in space"](https://news.bbc.co.uk/1/hi/2330933.stm). Jerusalem: [BBC News](/source/BBC_News). Retrieved December 30, 2021.

1. **[^](#cite_ref-17)** Uri, John (May 11, 2020). Mars, Kelli (ed.). ["Space Station 20th: Music on ISS"](https://www.nasa.gov/feature/space-station-20th-music-on-iss). [NASA](/source/NASA). Retrieved December 30, 2021.

### Bibliography

- [Hansen, James R.](/source/James_R._Hansen) (2005). [*First Man: The Life of Neil A. Armstrong*](/source/First_Man%3A_The_Life_of_Neil_A._Armstrong). [Simon & Schuster](/source/Simon_%26_Schuster). [ISBN](/source/ISBN_(identifier)) [0-7432-5631-X](https://en.wikipedia.org/wiki/Special:BookSources/0-7432-5631-X).

- [Jurek, Richard](/source/Richard_Jurek) (2019). "Post-Apollo". *The Ultimate Engineer: The Remarkable Life of NASA's Visionary Leader George M. Low*. University of Nebraska Press. pp. 149–198. [ISBN](/source/ISBN_(identifier)) [9780803299559](https://en.wikipedia.org/wiki/Special:BookSources/9780803299559).

- Seedhouse, Erik (2010). "Ten weeks and counting". *Prepare for Launch*. Praxis Publishing. pp. 213–224. [doi](/source/Doi_(identifier)):[10.1007/978-1-4419-1350-0_10](https://doi.org/10.1007%2F978-1-4419-1350-0_10). [ISBN](/source/ISBN_(identifier)) [978-1-4419-1350-0](https://en.wikipedia.org/wiki/Special:BookSources/978-1-4419-1350-0).

- [Worden, Al](/source/Alfred_Worden); [French, Francis](/source/Francis_French_(author)) (2012). Sajewski, Lise (ed.). *Falling to Earth: An Apollo 15 Astronaut's Journey to the Moon* (1st ed.). Smithsonian Books. [ISBN](/source/ISBN_(identifier)) [9781588343338](https://en.wikipedia.org/wiki/Special:BookSources/9781588343338).

This article incorporates [public domain material](https://www.jsc.nasa.gov/policies.html#Guidelines) from websites or documents of the [National Aeronautics and Space Administration](/source/National_Aeronautics_and_Space_Administration).

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Adapted from the Wikipedia article [Personal preference kit](https://en.wikipedia.org/wiki/Personal_preference_kit) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Personal_preference_kit?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
