In my case its play the recorders. I know that sounds a bit geeky but it really was fun. Even managed to work with Sir Peter Maxwell Davis for a concert at the Queen Elizabeth Hall on Southbank once. And I miss it. Having recently found them again I thought I'd dust them off and bring them into our lives a bit more, well the neighbours dog barked everytine I have, Littleun has run for the hills and I have realised that just because once you were good at something doesn't mean you still are!
Being the stubborn sort I have not given up and am now practicing trying to get somewhere even half decent. It has however made quite a few folk I know go "oh I used too..." and start doing things they enjoyed once more.
So my question to you is, what did you do that you really liked and would you learn it or do it again now?