Dinosaurs. Volcanoes (inactive ones of course, LOL!). Also, walking around really, really slowly and hissing.
Marshall, Will, and Holly.
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS SSSSSSSSSSSSSSSSSSSSSS.
SSSSSSSSSSSSSSSSSSSSSSSSSSS...part 2!
The Flintstones.
SSSSSSSSSSSSSSSSSSSSSSSSSSSSS.
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS. And this guy...