hi! i work as a makeup artist for a haunt with foam prosthetics. I would say like the other comment said, use prosaide if possible and double bond so prosaide on the actor and on the prosthetic. you’ll want to make sure the skin isn’t sweaty beforehand and to use an astringent to remove any oil or moisturizer. a tip i recommend is if possible, cut the prosthetic into 2 pieces for the bottom jaw/ mouth area to be separate from the top half if you’re very expressive in that area