Add the baking soda and contact lens solution to the bowl.
Mix with a fork until combined and the mixture starts to clump together.
Use your hands to knead the slime together until it forms the consistency you like. If it's too sticky, feel free to add a tiny bit (1 teaspoon at a time) of contact lens solution then knead again.
Spread the slime out on a flat surface then shake the blue and green glitters onto of the clear slime. Mix the glitter into the slime until completely combined.
Notes
Your contact lens solution must contain boric acid in order to work properly, so check the ingredients before purchasing.