Thanks, and as far as matierials the for sale PVC signs are the best bet, don't get cheap on your own art, and $2 is not expensive, the PVC for sale signs come in different thickness and are way cheaper than official plastistruct sheets,I also do an inner frame made from balsa wood or a really hard cardboard,unless you have all the needed supplies laying around you will need to spend some cash on supplies, but it's all so worth it:)