This site has some strange and interesting aircraft:
http://rds.yahoo.com/_ylt=A0geu7VP83VIb00APh9XNyoA;_ylu...lookingaircraft.html

I also have a very cool .pps of some strange and intersting aircraft but have found no way to post it up here. If anyone knows how to post a .pps from an email let me know and I'll put it up.