Like some other guys have said: My other hobby is collecting other hobbies!

Some auto related hobbies: collecting metal trunks that fit Model-A trunk racks, running board tool boxes, running board gas/oil/water cans, and most
especially '20s-'30s spotlights and auxiliary (fog,driving,road) lights/lamps.
Other hobbies are: HO model railroading, guns (including a legal Thompson), Harley-Davidson's ('65 Pan custom & '94 Softail). Old hobbies
no longer involved with: WWII Nazi gear, Lucky Strike cigarette paraphernalia (when I smoked them), reloading ammo and chasing women while I was a bad (I thought at least) biker.
Bob-A
PS: One hobby I would like to get into when I win the Power-Ball Lotto.
Collecting late 20's, early 30's Packards, Lincolns, Cadillacs, etc.