In a mixing bowl add the white glue and the water and mix well.
Add the shaving cream into the glue mixture and mix well until combined.
Add in the baking soda and mix well.
Add in the saline solution one tablespoon at a time and mix the slime mixture until the slime starts to form and pulls away from the sides of the bowl. You may not need to use all of the saline solution, so be careful when you are adding it. If you add to much it will make your slime hard.
Once the slime is formed fully, spread out the slime in the bowl and add in the model magic and mix it into the slime with your hands.
Once the model magic is fully mixed in add the confetti and use your hands to mix it thru out the slime.