Mold the perfect semi-spherical concrete planter using a plastic bowl at the bottom and a bowling ball at the top. Decorate with stones, gems, or any other striking feature. If you cure it right, then this can last forever.

Mold the perfect semi-spherical concrete planter using a plastic bowl at the bottom and a bowling ball at the top. Decorate with stones, gems, or any other striking feature. If you cure it right, then this can last forever.