i've been looking for awhile but can't seem to find any simpsons...are they around at all??
NO
Actually, yes they are, sort of. These are available in Australia. Made by Milton Bradley.
Here's Bart
I've seen a Simpsons Car an House papercraft somewhere...
http://finalpaper.net/bbs/board.php?bo_table=dp_building&wr_id=29&page=4