My mix is a little odd. My home office is a strange mix of handbags and nascar. It started out nascar but the handbags are starting to battle for space.
I usually have at least 4 bags set around as decoration. I like to look at them. Plus, it reminds me I have enough and helps me to not surf the net looking for the next one.
I do collect race-used sheet metal. The one in this picture came from the Atlanta race. Greg Biffle had a bit of a mishap.

I have 3 other huge pieces of the same car.
(Valentino Aphrodite in taupe and Marc Jacobs Stam in vanilla