A combination of Shapeways parts and repainting. There is a thread showing Sideswipe's alt mode somewhere in here...
right here: shows the 'before' chests as well. http://www.otca.com.au/boards/showth...ight=sideswipe
https://i.imgur.com/iworn0G.jpg
https://i.imgur.com/dlKhcNR.jpg
