Here's a link with some more info on Lance's icons . . .

http://www.nike.com/wearyellow/main.html

I really like the idea of the icons. Right now, at Niketown.com, you can purchase tees with some of Lance's icons on them . . . there are actually 8 tees and each tee tells a different story, with the icons either on the sleeve or on the front.

As far as icon stickers for the bike, I think it's a great idea. I wouldn't cover my bike in stickers, but a few that "tell a story" would be unique as well as inspirational. If small like Lance's (for the bike), they could also be enlarged for say, your car, your bike case, etc.