I had a couple of extra Havoc staffs from some Mega-Construx Skeletors and thought they gave me a Skullgrin vibe. I found a body that was already the right color and build for him and tested the head out. I liked the look of it, so I painted up the body, trimmed the horns from one of the skulls and used it to make the second pair on Skullgrin, then painted him up. I also sculpted the skull on his belt. I'm pretty pleased with how he turned out and may try tackling the other Pretender shells.