So for the ones who were sick of their Pokeballs rollin' away, here's the Pokebox!
Use it to hold what you want!
Maybe a Pokeball would look approximately like this in Minecraft...
I printed the bigger white and red parts with 1.2mm shell/top/bottom thickness and 0% infill, the other parts with 0.8 shell thickness and 100% infill.
You have to use supports only for the button.