This was a circa 1975 game/kit from Milton Bradley for children to make shrunken heads.

The heads were desiccated apples, and the kit included dehydrating powder. After Before (see correction from catoblepas@lemmy.blahaj.zone in thread) desiccating your apple, you would carve eyes and other features into it, a bit like a pumpkin. Then the kit supplied hair, eyes, bits of cloth, and other items to affix to it, to fashion your very own shrunken head.

The master of horror cinema himself, Vincent Price lent his non-shrunken visage to the box.