Wow, I'm kind of suprised you got permission for that (not that I have anything in particular against it). It seems to me if I were a school, I wouldn't want random pictures all over the walls, it is possible that they could detract from the learning. Then again, for all I know this is actually helping with the learning, as the creator of this thread said they are intended to.
Team 1318 decided it would be cool this year if we painted the top of our practice-field ramp to be team-spirited.
This is what it looked like (before we actually attached it to the ramp).