Adjustable RC Airplane/Aircraft Propeller Ceiling Hanger for the Hangar

A set of hooks that slide on rails that allow you to hang most size RC Airplanes from the ceiling safely. A full set is one of each hook and two of the rails. I do not recommend these for planes with rubber bands or o-rings holding the props on or flimsy props. I'm sure there are a lot more uses than just hanging planes from. The two planes behind my design in the second pic are hanging from http://www.thingiverse.com/thing:1093029.

Update #1 - I have a lot of MakerGeeks Crystal Yellow PETG s