Originally I just wanted to create something quick with these simplified springs which can easily be 3D printed. Now I made lots more little pieces. They can be easily assembled just by snapping them together.
Check out the gallery with gifs here: http://imgur.com/a/Q0FV1
No support required. I have printed my things in ABS, 0.2 layer height and with rafts. I don't know how good PLA will work since it is usually less flexible and I also don't know how good the tolerances work with different printers, the pieces are pretty small. Print the testbed.stl to see how it works for you. For now I only included the set for the Dude. Please give me feedback when you printed something and don't tell the dog:http://i.imgur.com/x7btZJy.gif