Chemistry suggestion

[atomic1fire]

Paper in a beaker + some kind of glue reagent (glues have been suggested before) = Paper mache

Splash it on someone's face to make a cool mask.

[Nurdock]

Paper in a beaker + some kind of glue reagent (glues have been suggested before) = Paper mache

Splash it on someone's face to make a cool mask.

Add paint for instant clown mask. Might also be able to paint it to look like someone else's face for sneaky purposes.

[Frank_Stein]

Piñatas

[Noah Buttes]

some kind of glue reagent (glues have been suggested before)

I've actually seen a glue reagent in a cigarette before.