pokeball simple. two parts.

Just a pokeball. i used a toothpick for a hinge pin.

if you're using simplify 3D - go into the support tab, change the upper vertical separation layers to 0, and the horizontal offset from part to .3mm. it will print that nasty shallow curve on the bottom of the sphere beautifully - or at least it did for me. saves you the trouble of printing it lip-down and printing a ton of support on the inside.