Mix 1/2 cup cornstarch with 1/2 cup warm water in a bowl
Stir until smooth
Add 1–2 teaspoons more cornstarch if it’s too runny
Add a splash more warm water if it’s too stiff
Add a few drops of food coloring or a pinch of glitter (optional)
Knead with clean hands for 30–60 seconds
Store in an airtight container when not in use
Combine 1/2 cup laundry detergent gel (clear or white) with 1–2 tablespoons baking soda in a bowl
Stir until it thickens
If needed, add more baking soda a little at a time
Add food coloring (optional)
Let sit 5–10 minutes
Store in an airtight container
In a bowl, mix 1 cup shaving cream with 1/4 cup contact lens solution (only if it contains boric acid)
Stir slowly until it turns into slime
If it’s too sticky, add more contact lens solution a teaspoon at a time
If it’s too firm, add a little more shaving cream
Add food coloring or glitter (optional)
Store in an airtight container
Mix 1/2 cup warm water with 2 tablespoons sugar
Stir until mostly dissolved
Add 1 cup clear or flavored gelatin powder
Microwave in short bursts (10–15 seconds) until fully dissolved (or heat gently on the stove)
Stir well
Chill 2–3 hours until set
Knead to stretch into a slime-like texture
Store chilled in a sealed container