I did some work for SOTA FX making these Steve Johnson inspired trashbag cocoons and tentacles for a low budget music video. The cocoons were fabricated in about a day, then another day or so to paint. Matt Falleta hired me and helped "puppeteer" on the shoot day. The technique of using trash bags as a building material to create 'balloon puppets' was fostered at Steve Johnson's XFX by Bill Bryan for the original Species movie and has been used (some say overused) often because of how inexpensive the source materials and labor are involved in creating them.
trash bags