Algodoo

This multi-colored box was used on the I.S.S. for storing fish that the astronauts caught while visiting one of Jupiter's moons. They did not tie it down properly to the outboard safety rail and so it floated away into deep space (fish and all!). Now it will tumble forever or until some alien creatures find it and decide to keep it (whichever comes first).

All of the awesome (and difficult) scripting was done by s_noonan. All I did was to tweak it until I got the box to tumble (which was relatively easy).