Stir the salt, cornstarch, baking soda, and citric acid in a large mixing bowl. Use a whisk to avoid clumps. Mix water, food coloring, and fragrance oil in a separate bowl. Slowly pour and whisk the wet ingredients into the dry ingredients. Pour the mixture into the heart molds and top with sprinkles.

Mix baking soda, citric acid, and corn starch in a bowl. Slowly pour rubbing alcohol into the bowl, and remove 3-tablespoons of the mixture to set aside in another bowl. Add the matcha powder to the original bowl. The matcha powder makes the original mixture green. Add a thin layer of green powder to the bottom of each mold. Layer the white mixture from the other bowl on top of the green layer, and continue layering until the mold is full.

Put the mango butter, almond oil, and honey in a glass bowl, and boil water in a saucepan. Place the glass bowl in the pan of boiling water to melt ingredients. Remove the bowl from the saucepan, and stir in 1-cup of powdered milk. Roll the mixture into dense balls, and roll the balls in the 1/2-cup of powdered milk.

Mix baking soda, cornstarch, salt, and citric acid in a large bowl. Mix the almond oil, water, and essential oil in a separate bowl. Slowly pour wet ingredients into dry ingredients, and mix them together. Fill each mold with the mixture. Push the molds together for several minutes, so the bath bombs have a round shape. Carefully pull the top mold away and turn the bottom mold upside down to remove the balls. A meat baller can be used instead of the molds. Wrap each ball in cellophane for storage.

Mix the charcoal, baking soda, and citric acid in a large glass bowl. Add melted coconut oil and essential oils. Stir all ingredients together and add enough witch hazel to moisten the mixture to wet sand consistency. Fill molds and let them sit for 24 hours before using bath bombs.

Put baking soda, salt, clay, rosehip oil, and both essential oils in a large bowl. Add citric acid and mix thoroughly. Pour Isopropyl alcohol into a spray bottle and spritz alcohol on the baking soda mixture 8-10 times while stirring. Push the mixture into bath bomb molds or scoop it with a meat baller. Place the balls on parchment paper to dry.

Mix baking soda, citric acid, and corn starch in a large bowl. Add coconut oil and mix thoroughly. Put half the mixture into another bowl. Add ten drops of lemon oil and yellow food coloring to one bowl, and add ten drops of lavender essential oil and purple food coloring in the other bowl. Spray witch hazel on both mixtures until they form balls without crumbling. Layer the purple and yellow mixtures in the molds or plastic ornament balls to create stripes or patterns.

Mix citric acid, corn starch, baking soda, and Epsom salt in a bowl. Mix essential oils, water, and vitamin E oil in a separate bowl. Combine the wet and dry ingredients, and separate the mixture equally into three bowls. Add a different shade of food coloring to each bowl. Pack the mixture into molds or scoop with the meat baller. Let the bath bombs dry for 8 hours. Stack one bath bomb of each color on the cones for a 3-scoop ice cream cone. Add sprinkles over each stacked cone.

Mix the baking soda, corn starch, Epsom salts, and citric acid in a large bowl. Combine water, peppermint oil, olive oil, and blue food coloring in a separate bowl. Whisk the wet and dry ingredients together, and pack the mixture into snowflake molds. Let molds sit for 24 hours before removing bath bombs.