Question: how to make fluffy slime with only three ingredients?
Answer: Place glue in a plastic bowl. If you're adding food coloring, add it now until desired color is reached.
Add saline solution and mix until combined.
Stir in 1-2 cups of shaving cream. The more you add, the thicker it'll be. ... 
Stir until you can no longer stir and then kneed with your hands. ... 
Enjoy!