Ooh cheers, I see some EVA fairly cheap on ebay. Is that the same as polyethylene foam? PE seems to come in rolls.. looks like what I'm thinking of but would need the stiff sheet type not so flexible.
As with all foams, EVA comes in different densities and varying grades of softness. Sadly that's where my expertise ends, I don't know which one is stiff enough, but some searching around cosplayer/crafter pages should result in some recommendations.
Ooh cheers, I see some EVA fairly cheap on ebay. Is that the same as polyethylene foam? PE seems to come in rolls.. looks like what I'm thinking of but would need the stiff sheet type not so flexible.