Frame for UDI U816 Quadcopter

This is an add-on to the greatest helicopter toy I've ever played with: the UDI U816.

You can buy the copter on Amazon prime for $60:
http://www.amazon.com/UDI-Axis-Stablized-Quadcopter-Helicopter/dp/B0095BXACK/ref=sr_1_1?ie=UTF8&qid=1359084783&sr=8-1&keywords=udi+u816

Or if you buy more direct ~$40: http://www.banggood.com/Wholesale-Udi-U816-2_4g-4ch-4-axis-Mini-Rc-Remote-Control-Ufo-360-Eversion-Helicopter-p-48619.html

And to support the development of new designs, I have st