Here is my final design: 'Helms of Transformation'. Had lots of fun making this one; Classic transformers plus magical helmets plus 80's-tastic neon. Shockwave redesigned as a jousting helm is probably my favourite one in the end. If you're on welovefine, the designs are open for rating here:
http://contest.welovefine.com/contest/71-transformers-design-contest-2