Please answer the following question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What is the prop head filled with? Title: The Deadly Spawn Movie plot: Two campers are nearby when a meteor falls to Earth and lands in the woods near their campsite. When they go to investigate, they are attacked and eaten by a bizarre lifeform that emerges from the crashed rock, mostly unseen but apparently consisting of multiple heads with hundreds of teeth.Nearby the crash site is a large house located on a rural plot of land. The house is the home of Sam (James L. Brewster) and Barb (Elissa Neil), and their two school-age children, high school age Pete (Tom DeFranco) and his younger brother Charles (Charles George Hildebrandt). Visiting are Aunt Millie (Ethel Michelson) and Uncle Herb (John Schmerling).Sam and Barb rise before anybody else is awake; they have an unspecified trip planned, which Barb hopes can be put off because of the incessant rainstorm. Sam insists, and he goes downstairs to check the basement for flooding. A flapping basement window suggests that the creature from the meteor has taken refuge in the cellar, and sure enough, when Sam goes into the basement, he is eaten by the bizarre monstrosity. Barb suffers the same fate when she goes down to see what happened to Sam; the creature corners her and viciously bites off her face.Aunt Millie is awakened by screaming, but she attributes it to the horror movie that Charles is watching on TV in his room. Charles is obsessed with magic, monsters, and scaring people. When Aunt Millie returns to call Charles to breakfast, he surprises her by wearing a scary mask and costume and setting off flash powder when she opens the door. Pete disapproves of Charles' hobby, being more interested in schoolwork and science. Pete fancies himself a scientist, and he sets up a study date with three classmates, Ellen (Jean Tafler), Frankie (Richard Lee Porter), and Kathy (Karen Tighe).Aunt Millie has plans to have lunch with her mother, Bunny (Judith Mayes), who is planning an extravagant vegetarian lunch for a small group of friends. Uncle Herb, who is a psychologist, is interested in talking with Charles about his interest in the...
A:
explosives