Yeah, i'm surew you can find good stuff

I was sorta meaning the 1# insulation foam, the 2# blanks are sure to have much more life to them.
I always think of the foam as being just one step away from being hollow.
The jump from lightweight EPS to full hollow (no ribs or anything) is so large!
It's hard to imagine a foam that can be lighter than EPS yet provide such great support for the skins.