Hey guys, Just finished this one in the morning and manged to take some quick pics of the slingshot. The Core is 8mm thick DKC Ergo blank, and the handle material is made by Composite Crafts called Blue C-Tek. Which is basically a 1/4" thick aluminum honey comb with some kind of blue resin infused in the core. From working with the material, the resin seems like standard epoxy ... i could be wrong though. Thanks for looking.