I stole my idea from a surfboard rack. Mine has a sturdy (sealed) base as my planes live inside the house. It has a back on it about 3' off the ground with holes drilled in it, and in the back are about 20 removable dowel pegs at about 4" apart. if a fuselage is over 4" wide, you simply remove a peg. the aircraft go nose down and lean on the wall, supported from falling over by the pegs. In between fuselages I cram wings in bags etc.

I can store 2 quarter scale planes, 1 pattern ship, 3 sailplanes, one motorglider and all the wings in an 8x3 patch. I sleep easy at night knowing the can't fall any further...
...which has happened to me when i used to hang my planes.