man, there are just too many things to list. I'm a martial artist, but thats a way of life, not a hobby as far as I'm concerned. But I am a huge computer nerd, I love the beach, cars, guns, women of all kinds, wood working, drinking games, music of all kinds, comic books, movies, boats, tattoos, and the list goes on ...
What I'm really trying hard to make my new hobby is fashion. Not that I really enjoy fashion or anything, but since me and the ex broke up I haven't purchased any new clothing, simply because she used to dress me. Its high time i figured out what looks good on me, and start wearing it.
I don't do this for my family, my friends, women, accolades, pride, or ego. I do it for me and no one else, its just part of who I am.