Dashboard bobble-figure dancing baby Groot!
https://www.youtube.com/watch?v=Q3gcFRz78iM
Also used a conveniently-sized push-base from this rad push-puppet flower (which I also turned into a push-puppet potted groot, but he's not quite ready for primetime):
http://www.thingiverse.com/thing:8179

• Print all parts (print two of the spring base parts).
• Make a ~4cm spring using this thing: http://www.thingiverse.com/thing:92266
• Thread the ends of the spring into the holes in the bases and glue it so that the bases are parallel to each other with the smaller side of the bases inside the spring.
• Glue one of the bases to the bottom of Groot's base, and glue the other base to the bottom of the inside of the pot.
• Vapor-polish & paint everything if you want to make it more radder.
• Affix the pot to your desk, dashboard, or forehead.
• SPROI-oi-OI-oi-OING!