First off, gotta give a ton of praise to @AzimVenksta from Twitter for the combiner head. They were nice enough to give me the piece back at TFcon Toronto and without it this big guy couldn't have happened. I highly suggest checking out their other works at www.renderform.com Menasor is made out of the KO POTP Predaking, along with parts from the giant Roll Out Command Optimus Prime toy. Each of the Stunticons are customs as well, repainted to resemble the Botcon exclusives as close as I could get them to. The main body of Menasor transforms into a trailer for Motormaster. For combined mode each Stunticon can attach to the body via some pretty strong magnets. The magnets don't interfere with the transformations or articulation of each Stunticon. Only issue is with how Motormaster combiners which limits the waist articulation a bit.