The talented Professor HerpaDerpalus has used SCIENCE to summon Steampug into the third dimension.  He has also been given a nifty propulsion system.

http://www.polycount.com/forum/showthread.php?t=87084

…It should also be noted that the good Professor suggested as plausible an origin story as I’ve heard: “some mad inventor thought his dog wanted to see the world and made a baloon for him, not realizing the dog will end up a tiny skeleton attached to a baloon in a bit.”