Ran across this amazing steam powered R2 unit! Ironically I’m wearing my steampunk Star Wars t-shirt today. Build from an old boiler and Hasbro interactive R2-D2 toy.
Be sure to scroll all the way down for the videos, this guy is making some really cool stuff.

Be sure to check out the other steam powered creations as well! http://www.crabfu.com/steamtoys/