Little hopping happy fella figure - 100% 3D-printed

My beautiful little Hoptimist-inspired figure, created on Fusion 360. Easy to make, just follow instructions.

I printed the head with 30% infill to lessen the weight on the printed spring and make it more bouncy.

The bottom was printed with 100% infill, to make it heavier, so it wouldn't bounce around with the head.

Here's the hardest part:
The spring was done with 100% infill. I did a lot of prototypes, but this was the best one I managed to make, although it is completely up to yo