I seem to have started to do this, and Adidas in particular.
Currently I have:
1 White Adidas Vespas
2 Black Adidas Babma
3 Grey Suede Adidas Bamba
4 Blue Adidas Porsche Design
5 Brown Adidas ?
6 Brown Adidas Chile 62
7 White Adidas Cup 68
8 White Adidas Beckenbauer
9 White Adidas Adi Racer
10 Brown Adidas Adi Racer
11 White Adidas Kick
12 White / Grey Adidas
13 White Puma GV Specials
14 White Nike Air Max
15 Black Nike ?
16 Blue RL Polo
16 Tan Timberland
17 Brown Rockport
I think that I should stop now
before it gets out of hand