@kai Never really have before, but I sometimes imagine doing it. I think I'd use a large clear sticker as the base layer so I can take them all off at once at a later date, then maybe stick them in a frame and note what year(s) they were from. I definitely wouldn't overlap stickers the way some people do. I'd approach it like a tiling window manager. Actually, I had a laptop lid in mind just now. I did stick a ThinkGeek (it was a monkey head) and a What.CD sticker on the side of an old desktop case once. I can't remember what came over me.