Everyone has stuff that they collect thinking somehow it will be needed in this hobby. I have several small plastic cuplike gizmos that look like miniature crutch tips. Good for putting over the carb opening to keep out dust. WallyWorld sells something in the stationery dept. that looks like white foam filled cardboard. I think Exacto makes it. Ought to be good for fixing something on a plane. Very lightweight. Aluminum flashing from the hardware store ought to be good for something. I look at plastic bottles differently now that I cut out a pretty good looking Cub windshield from a candy jar from Costco. I have a lifetime supply of a metal screen wire with a very small mesh that is used in air filters. Ought to work for hinges or reinforcement somewhere. Look in the craft section at WallyWorld. It is full of stuff, such as really cheap watercolor brushes for mixing epoxy, etc. Anybody else have stuff?