Question: how to make fluffy unicorn slime with borax?
Answer: Dissolve 1 tsp of borax in 1 cup of warm water and set aside.
In a large bowl, mix together the white glue and shaving cream. ... 
Mix in the borax solution, 1 tsp at a time, until the mixture pulls completely away from the sides of the bowl. ... 
Store the slime in an air tight container for up to 1 week.