That's a tuff one. Putting a grafxwerks decal on it wouldn't work since the piece is broken off like that...Not sure what you'd use, but if you could fab something up in the broken piece's place....you could glue it in and THEN throw a grafxwerks decal over it and never be able to tell it was broken.That's what I'd do, but again...not sure what you could use
in my taxidermy, I use two products, Apoxie Clay, and Apoxie Sculpt. They work like an epoxy, two parts, but they are like clay, and like plastic, and the sculpt dries like a hard acrylic like, and also has an adhering property, I use it to finish off the gaps between the skin and eye. Not sure where you can get stuff like that, but if you don't find a suitable replacement, maybe I can just send you a dab of each part.EDIT: It comes out black though, so you would still need the grafxwerx