I have a number of pine 1 x 4 blocks the are a foot long, from these blocks I made two vertical pieces of 1/16" piano wire that I sharpened the ends. I glued these into the blocks with the points sticking up. When I paint a control surface I just press it on the two wires guiding them into a couple if the hinge holes. It works great and I put tape on the hinges that I usually epoxy into one have before painting.