Buying a watermelon so often leads to leftover melon. Here’s a delicious way to make use of this largesse. Buy 5-oz (150 g) paper “bath cups”—they make great moulds for ice pops, as the paper just peels away. Gelatin helps keep drips at bay and also adds to smoothness. From LCBO Food & Drink Magazine. Time to prepare does not include time to freeze. Watermelon is thought to have originated in southern Africa, where it is found growing wild, because it reaches maximum genetic diversity there, resulting in sweet, bland and bitter forms.