Safe and Dangerous Slime Recipes

All of these recipes could be safe given exacting adherence to the recipes.  However whenever kids are involved the potential for unexpected variability is always higher.  This list is not exhausted and the recipes were not tested by the poster.

Safer (Borax Free) Slime Recipes:
https://science.wonderhowto.com/how-to/make-slime-without-borax-5-easy-recipes-for-gooey-homemade-ooze-0147194/
https://www.youtube.com/watch?v=Ileysde0y6M

Less Safe - Avoid slime recipes that includes Borax (Boric Acid):
https://www.stevespanglerscience.com/lab/experiments/glue-borax-gak/
www.pbs.org/parents/crafts-for-kids/gak-attack/
https://www.homesciencetools.com/learning-center/how-to-make-slime/
https://sciencebob.com/make_slime_with_borax/
https://www.pinterest.com/explore/slime-recipe-borax/