This is a commissioned "War Within" series Grimlock. I built this custom using a Universe Onslaught, went to town adding battle damage with my dremel and hot knife. The commissioner requested the "teeth" style head, which were hand sculpted using aves fixit and styrene. (kinda hard to see in most of the photos) The head is a combination of the original Onslaught's bottom half, and an alternator Grimlock's top half. The head now is on a ball joint, it no longer lights up. The chain guns come from a Terminator : Salvation toy, and clip onto pegs on Grimlock's alternate mode, they also rotate up and down. WWI Grimlock was painted with some custom blends of House of Kolors lacquers and detailed with Testor's Model Master enamels. The 3d effect on the rust and damage was created using epoxy glue. Full gallery can be seen here : War Within Grimock (v2) - a set on Flickr Just for fun, here's a pic from "version 1"