Question: how to make slime without glue but only activator?
Answer: Pour 2 TBSP of shampoo of choice into a bowl (you can always add more shampoo later). Shampoo into bowl.
Add in 2 TBSP of shaving cream (foam) to the shampoo and mix. ... 
Add 1 tsp of salt and mix everything together thoroughly. ... 
Put mixture into the freezer for approximately 15 minutes. ... 
Remove from freezer and play!