Step 4: Place the pyrex on wax paper or something to protect your counters, and wear gloves (included in the kit).
Step 5: Choose your colours. I used teal, fuchsia, purple, and violet for my sweatshirt. The kit comes with dry powder in each bottle — DON'T add water. Use a small 1/4 teaspoon to scoop the powder out of the bottle and sprinkle it over the ice. I did an alternating stripe pattern with all four colours. Each time you switch colours, use a paper towel to clean the spoon. For my second sock batch, I used pink, coral, orange, and yellow.
Image Source: POPSUGAR Photography / Dana Avidan Cohn