Does the cardboard flatten out after a while?i use card board if not thick enough i use 2 pcs i will post a pic if you want to see what it looks like
You can indent and smash balsa wood with your bare fingers though. I don't think that would hold up the greatest would it?If you go get small sheets of balsa wood from a hobby store and a dremel with a small cylindrical bit on it you can basically carve the balsa to the emblem you want, pretty easy and quick with the dremel and fairly precise.