Mix glue and baking soda in medium glass bowl until well blended.
Stir in water, desired food color(s) and extract(s) until well blended and you get the color and smell you want. (Or, download our Color and Scent Mixing Guide in the romance copy above to see our Halloween Scented Slime ideas.)
While this slime looks and smells yummy, it is not edible. The addition of extract(s) is for scent only.
Stir in contact solution, 1 teaspoon at a time, until mixture becomes difficult to stir and is no longer sticky. (If necessary, add more contact solution until desired consistency.)
Not all contact solutions will work. For best results, use those without added proprietary moisturizers.
Knead in hands until you form a ball that is slightly wet, but does not stick to hands. (Slime is ready to use when you can touch the slime and pull your finger away without anything sticking to it.) (Store slime in an airtight container when not using.)
Long exposure to slime may dry out hands. Wash hands with soap and water after each use.