1/2 cup white school glue
1/4 cup water
1/4 to 1/2 teaspoon baking soda
1 to 2 tablespoons contact lens solution
Mix the glue and water in a bowl
Stir in the baking soda
Add the contact lens solution a little at a time
Stir until the mixture starts to clump
Knead with your hands until it becomes goo
Add more contact lens solution if it is too sticky
Add a little more glue if it is too stiff