Interesting, my son has a Buzz from a few years ago. The TRU one with bug splatter on the helmet. Were you talking bashing the two together, or just making Buzz into Mr Freeze with a head swap and repaint?
It would, but it almost makes me want to try. The Buzz my son has is a perfect IH size. I may see if I can at least use the helmet visor from Buzz on the DC Mr Freeze so I can open it to turn his head.