here’s the muscle marvin: Marvin Muscle Remix by CharlesDesign - Thingiverse 1
while we don’t have the muscle ninja file, we might be able to help with that. andre strydom made it available at some point during the contest, not sure if it works anymore, but here it is: http://www.pasteall.org/blend/31572. otherwise, you should be able to still contact him in the comments here: Weekend Contest: Give Marvin superpowers! - BlenderNation 1.