Okay, so I've been trying like crazy to find the foam board that Flite Test uses for their speed build kits... all I can find is the Elmer's stuff that has the thick paper. It seems to be a bit heavier, and it really doesn't take hot glue as good as the Flite Test stuff... where exactly can you get that stuff? I've checked Wal-Mart, K-Mart, Target, Family Dollar, and even the Dollar Store... the only places I haven't checked are hobby stores, craft stores, and hardware stores...