The edges can be sealed with some scotch tape all around the perimeter if you want.
Very light and sticks well. Most usually just seal the LE. Sealing will keep all the field dirt out of the flutes.
CA works best for gluing dowels,etc to the LE. For a tougher leading edge I have used duct tape.
I will peel off the needed length and put it onto my glass table top, then cut it down to a smaller width
than the roll size with a razor knife using a ruler guide. The edges of the duct tape can also be sealed with
CA thin so it stays put. I'll put a few drops at one end and hold the wing till it runs to the other wing tip.
I have tried several ways to make hinges. Simplest is to just cut away one side of the plastic so it
bends easy. Tape also makes a good hinge and gives better motion once a pilot gets good. I have also
used dowels into the flutes as a hinge on different designs of mine ( but this needs washers for a spacer
- I will make those also from the coro ). Cut lightening holes with a hole saw too! Then cover them with tape.
They are a lot of fun to goof around with.