I guess I do have a few bits and bobs in the garage that will never end up going on a car but I think most of it is 'aftermarket' stuff rather than make/model related - fibreglass arches, police siren, other daft items etc. Although I did have a habit of collecting badges at one point but sold off the more interesting ones when I needed some cash a while back.
Don't get me started on the shoes. I thought I was bad with around 30-40 pairs but Mrs Stiff blows me out of the water with her shoes and boots. Probably around 200 pairs all in. Mental. And clothes - Jeez, there's wardrobes full of the stuff with the labels still intact and never worn. "But I really liked it" she says "and I will wear it one day". Yeah, course you will