Update 4/5/14: The gimbal tolerances on my printers seem loose so have added an updated stl with tighter tolerances.
I printed out Parametric Gimbal, prints already assembled by Bluebie and have been playing with it for the past week. It is a fun print that shows Print-In-Place design to create elements that move.
As an exploration of remixing with Tinkercad's import STL function, I mashed up the Parametric Gimbal with the Printrbot logo at https://printrbot.com/2013/07/04/printrbot-logo-files/. It took a few iterations to get the center of balance adjusted and the thickness of the Printrbot logo to a level that still spun nicely.
Printed at 0.2mm layer height on the new Metal Printrbot Simple. I've printed the original design a few times on various printers and think the tolerances may be a little bit loose.