Check out this guy's build!

[earthsciteach]

Wish I could take credit for this, but I'm merely posting a link to another forum. This guy crashed his foamie Cub and decided to turn the remains into a Cub sailplane. The craftsmanship is impressive! Here's the link:
http://www.wattflyer.com/forums/showthread.php?t=68068

 

[colorex]

Truly amazing! I wish I was as good as him

 

[Ak Flyer]

That's really one of the coolest scratch builds I've ever seen.