If you get a chance check out Ken Hill's site @
http://www.acesim.com/rc/wallywing.html Based on a simple $7 foam glider available at most toy stores depending on the season, he has come up with several designs from a flying wing to a twin boom polihedral floater. I have built the wing and it flies great and have done some experimenting as well. My latest attempt is the Polly Pusher with twin carbon booms and a coro tail. The fun just keeps on coming. Maiden flight in one week.
Peace
Hawk