Therapy Diy Garden Projects Yummy Recipes Crafty Goodness . • 5 drops red and 5 drops blue. In a double boiler, slowly heat. Garden Therapy DIY Garden Projects, Yummy Recipes, & Crafty Goodness from www.pinterest.com Mash the berries with a potato masher so that you have a thick pulp. • 10 drops blue for blue peppermint play dough. Put a few small plates in the freezer.