Watermelons used to come in just one size - the huge oblong variety, until the big round seedless ones were developed. Now you can get round watermelons in all sizes, even the size of a regular melon or cantaloupe, or even smaller. I'm making two sizes of melons and slices, since I'm not sure what size will work best. Some of the slices are in the process of being eaten.
The really nice thing about working with Paperclay is that you don't have to sculpt too perfectly, because after it dries, it can be sanded into the perfect shape. So back out into the breezy sunshine they go, and maybe they'll be dry enough to sand tomorrow.