Taking the Stunticons and turning them into Turbomasters (sorry rotostorm). Full gallery here:
https://photos.google.com/album/AF1QipMm7L1BVwsyDtBiX8BsC1gbQfs_8cRzexwlngD7 I'm still working on touch up paint, weapons, and combiner head.
Boss, Scorch, Hurricane and Flash are basically repainted with labels with heads and a few parts from Shapeways to help the robot mode match better.
Swapping parts from Battle Core OP and Motormaster, adding some parts from Shapeways, and a little polyester glazing putty to fill in the chest, slap on some paint and Reprolabels (then realize I painted joints and pins) and voila, Motor-Prime becomes Thunderclash
and ultimately, as combining is their gimmick, they join to form Hyperdrive!