First post in this forum, though I've been twiddling with Powder Toy for a good long while now.
I agree with bchandark - in fact, I like the idea of metadata being included with a stamp that puts a shout for whoever you borrowed from. I've got this "cooling mesh" that I saw -somewhere-, and I have no clue where I saw it - mind you, I actually -drew- the thing from scratch, rather than using a stamp. I just used the same sort of design. If there were an easy way to attribute something without taking up a crapton of room, I'd be all over it though, and I'd have saved a fair bit of work for myself. ^_^