I have a 32ft by 16ft HO scale railroad based on an 1870's logging operation in Washington and Oregon,roughly 100 cars and 15 locos.
I also work on my 76 trans-am with a stroked 400 up to a 462. Never raced it yet ( well,atleast not sanctioned :) and a 1972 Monte Carlo SS that my grandpa gave to me after my grandma passed, it was her car so I'm leaving it totally stock.
And finally my guns (technically my dads until I'm 21) I have an rock river arms AR15 a belgian (I think,no serial numbers or stampings) AK47,Remington 700,mossberg 500 & 590 a ruger super redhawk in .454 casul, plus multitudes of airsoft rifles and paintball guns for outdoor fun with friends.
Most of this stuff I don't even call a hobby anymore,I built the cars over a period of about 5 yrs at my dads bodyshop since I was about 13 and I got into guns through my grandpa as he is one he'll of a gun nut (and inadvertantly so am I !) and the model trains started with a Christmas set I had when I was 3, lol --Josh