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Watermelon Slime Clay Seeds
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How to Make Watermelon Slime

Have fun making this cute and colourful watermelon slime! Choose the perfect shade of red and then add in polymer clay seeds for a cool and unique sensory experience.
Active Time10 minutes
Clay Seed Making1 hour
Total Time1 hour 10 minutes
Yield: 1 watermelon slime recipe
Author: Debbie Chapman
Cost: $3

Equipment

Materials

Instructions

Step 1: Find what you need

  • Gather your supplies and materials.
    Watermelon Slime Supplies

Step 2: Make the watermelon seeds

  • To make the watermelon seeds we're going to use black polymer clay.
    Watermelon Slime
  • Condition a small ball of the clay by stretching it and squishing it in your hands until it's soft and workable.
    Then break off small pieces of the clay for each of the seeds.
    Watermelon Slime
  • Roll a clay piece between your finger tips and then flatten it down. Use your pointer finger and thumb to gently squish one end of the clay, shaping it to a gentle point.
    Watermelon Slime
  • Repeat until you have a small parchment-lined tray of seeds.
    Bake in the oven according to package directions (ours recommends 275F for 15 minutes per 1/4 inch thickness.)
    Allow to cool before handling.
    Watermelon Slime

Step 3: Mix the first slime ingredients

  • Pour 1/2 cup of clear glue into a bowl.
    Watermelon Slime
  • Add 1 teaspoon of baking soda. Stir well to combine.
    Watermelon Slime
  • Stir in a few drops of red liquid watercolor paint (or food colouring) to colour the slime.
    Watermelon Slime
  • Then you're going to add as many of the clay watermelon seeds as you'd like.
    Watermelon Slime

Step 4: Activate the slime

  • Add 1-1/2 teaspoons of contact solution into the glue mixture.
    You may need to add more later, but start with this smaller amount.
    Watermelon Slime
  • Stir until you can't stir anymore and the slime comes away from the bowl.
    Watermelon Slime
  • Pick up the slime and squish it with your hands. It may be a bit sticky, but it'll get less sticky as you work with it.
    Because of the add-ins it's good if the slime is still a bit sticky, as it gets less stretchy as it sits. Add more contact solution only if necessary, a few drops at a time.
    Watermelon Slime
  • Optional: Place the slime in an airtight container and let sit overnight. This releases air bubbles and helps the slime become more clear.
    Watermelon Slime
  • Your watermelon slime is complete!
    Watermelon Slime

Video

Notes

Looking for more cool slime recipes? Here's a few of our favourites:
Scented Slime Recipe
Ghost Slime
Crunchy Slime Recipe