Museum currently exhibits 3161 unique bags.
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Actually, this came as part of an Official Astronaut Survival Kit that included Pop Rocks, Tang, hermetically sealed water in a pouch, Beano capsules, Freeze-dried ice cream, and glow in the dark space decals.
The copy on the foil packet says, "For use only in the event of an emergency outbreak of boredom during long space missions. Use caution when opening this pouch in negative gravity to avoid lodging items in space capsule machinery, personal space suit or helmet. NOT INTENDED FOR ASTRONAUTS UNDER THE AGE OF 3 OR TEST ANIMALS. NOT A FLOTATION DEVICE.
The back however, is actually printed on with the words "Boogie 'Til You Puke", which I think is damn good advice.