Watermelon soap recipe. Learn how to make DIY watermelon soap with no lye using melt and pour soap making bases. This fun pink, green and white watermelon soap recipe is made with cosmetic glitter and melt and pour glycerin soap. A fun summer soap making project for adults, teens and tweens. A family favorite soap making activity to craft with the kids. Easy beginner adult crafts for summertime fun. Learn how to make soap the easy way with this DIY watermelon soap making tutorial…