Flute! (That came about after a year on clarinet, which is what I'd "tested" into. I was bound-and-determined to play flute instead... and talked my band director into letting me try it and prove I could make sounds come out of a flute! Hmm.. sometimes people still call me stubborn. lol)
I have it under my desk and can still play a few fight songs that were drilled into my muscle memory. But that's about it.
(Also a color guard "veteran!" Anyone else have to march in those awful short leather boots with the hard soles???)