Hand painted pumpkin bath bomb Halloween STEAM Project

Hand Painted Pumpkin Halloween Bath Bombs

A fun and creative bath bomb making project for Halloween with hand painted pumpkins


Making the Pumpkin Halloween Bath Bombs

  • 2 cups baking soda
  • 3/4 cup citric acid
  • 1/4 cup cream of tartar
  • 1 cup corn starch
  • 1/3 cup coconut oil
  • 2 tbsp polysorbate 80
  • 10-20 drops pumpkin pie essential oil (or any other pumpkin scent you love)
  • 1 tbsp Orange mica powder
  • 2 drops Orange colorant

Painting Pumpkin Bath Bombs

  • 1 tsp coconut oil
  • 1/2 tsp activated charcoal Or use black gel food coloring
  • Black candy decorating pen
  • Candy Eyes optional


Making the Halloween Bath Bombs

  1. Add the baking soda, citric acid, cream of tartar and cornstarch to a large bowl. Stir to combine.

  2. In a microwave safe bowl add your coconut oil and melt in the microwave.

  3. Add the essential oils, mica (1 tbsp), colorant (2 drops) and polysorbate 80. Mix.

  4. Pour the liquid mixture into the dry mix bowl. Put on the disposable gloves and start mixing with your hands. You want to really mix everything together evenly and ensure there are no clumps. It should start to hold together like wet sand.

  5. Pack the molds to shape your bath bombs. Loosely heap mixture in each half of the mold. Then squish the mold together, twisting a bit until the halves meet. Tap the ends and sides, then remove your bath bomb from the mold.

  6. Let set for minimum 24 hours.

Painting the Pumpkin Bath Bombs

  1. Method 1 - Use a candy pen in black and draw on the faces.

  2. Method 2 - Melt 1 tsp of coconut oil and mix with activated charcoal or black gel food colouring. Paint on the faces. You can also use the coconut oil to attach candy eyes.