I feel like my hobbies are all over the place, I have tried to narrow it down in the later years. Since I don't have time to do everything + hobbies tend to cost a lot of money.
Well here are some of the hobbies I used to be into or are currently doing: warhammer both fantasy and 40k(more painting than playing, had no one to play with), magic the gathering(on a very basic lvl), bmx (there are almost only scooter kids in my skatepark now though..) and skateboarding.
Edit:
I don't know if any of my hobbies have had an influence on me when it comes to tattoes though.