In a large bowl, combine the glue, baby powder, baby oil, and hand lotion together until they’re fully mixed.
Add in as much shaving cream as there are ingredients in the bowl. There should be a 1:1 ratio of ingredients already in the bowl to shaving cream (eyeball it). Use a fork to mix the shaving cream into the glue mixture until it’s one consistent material.
Add in the liquid starch one teaspoon at a time, mixing after each teaspoon, until the slime stops sticking to the side of the bowl, and starts sticking to itself. Once this happens, your slime has reached the correct consistency.
Add in a ping pong ball sized lump of Play-Doh to the mixture. Use your hands and mix it well until it’s all combined into the slime. You'll mix for several minutes. It will make your slime very sticky, but mix until the lumps of Play-Doh are gone.
Once all the lumps of Play-Doh have disappeared, you will need to add liquid starch a teaspoon at a time back to your mixture to make it the right consistency again.
Keep mixing the liquid starch into the slime with a fork until it again stops sticking to the bowl, and starts sticking to itself. You can also add in a teaspoon of baby powder to help with the stickiness as well. Once your slime has reached the right consistency again, it’s ready to be played with.
Video
Notes
Your slime can be stored in an airtight container for later play. Keep in a cool dry place for best results.