The plastic kunai after all the modifications were done in order to make it look more like the item in the manga/anime. The handle was built up with a variety of layers - sculpey clay to make it rounder, cloth tape to smooth it out, hemp cord to build bulk, another layer of cloth tape for smoothing, and finally a printed sheet of paper glued down with Mod Podge. The ends were wrapped with hemp cord and dyed with leather dye. The blade was taped off with painter's tape, lightly sanded, and then spray painted with silver paint. Then the entire thing got a coating of clear varnish. While not perfect, it's a lot closer to what it needed to look like.