Hey guy's noob here.

I am making some foam alien heads out of a hard plastic mask I found at a thrift store for a couple bucks. I want to use the same mask to make a fitting latex type mask for my costume, with jaw moving etc. I was wondering if there is any cheaper material I can use besides liquid latex sold at the stores. Was going to try carpet latex because I know it dries like rubber, but I thought I'd get some ideas from you experts out there first.

I should probably mention I'm on an extremely low budget for this.

Everything I'm doing for my haunted graveyard is built off ideas from this forum, so thanks guy's for all the solid info you post here!