I have a 5' long, 1/2" gray schedule 40 PVC core with a 1/4" wall thickness, which I am using for the core. This weapon will have cylinder-shaped striking surfaces running nearly all the way up to the handle and will have stab-tips on both ends.
Will this core work for making a blue/green double-ended weapon? Also, can the blade part of the striking surface be made entirely out of closed cell foam or does there have to be open cell foam layered in as well? I am asking this because I do not have the open-cell foam to use for the blade (I am using poof footballs cut in half for the stab-tips) and I don't know whether or not closed-cell constructed blades would hit too hard.