8 printable slinkies - octagon, heart, square, star, circle, large circle, pac-man and a pac-man ghost.
This is an updated version of LargeCircleSlinky.stl, it has more space between the coils to make them easier to separate
I've printed all of these in ABS on my Up Plus 2 with support at a resolution of .20mm.
The slinkies print with an easy to remove sheath of support on the inside and outside. Once the support is removed the coils can be separated by hand or with a knife. I recommend using a knife so that you don't accidentally break a coil.