How about TF Bionicles? You get the can or bag and assemble them. Would they be the most complex TF's ever made? No. But I think they would have an incredible "cool" factor, and they would be hella articulated. What would they look like? probably a movie hybrid of sorts. Seeing the prices go up on TF's and Bionicles, I don't see my idea being all that cheap- but I don't see them being any more expensive than they are now.