The only instrument I was ever any good at was the trumpet and at one point in my life thought about being a professional musician. Wish I still had my horn, although my neighbors are probably glad I don't.
When I was unemployed a couple of years ago I started to teach myself ukulele (it was cheap fun) but never got very far with it. Still plunk around with it occasionally though, along with an old Harmony tenor guitar, a Samick 6-string acoustic, and a mandolin.