Borax Crystal Seashells The kind of rainy day fun that leaves a sparkle in your heart. Ingredients: - Clean seashells (any size, preferably white or light-colored) - Borax powder - Boiling water Directions: 1. Begin by filling a heatproof container with boiling water to create a warm base for our project. 2. Add Borax powder to the boiling water, using about 3 tablespoons for every cup of water, and stir gently until it disappears completely. 3. Now, carefully place the clean seashells in the li