I distinctly remember playing a game called Rocks, Sand, and Pebbles. One person (i will use "girls" as the only people I ever played with were other girls at sleep overs) lies on the ground on their back, and the other two or more girls sit around her. One girl tells the story of a girl who was murdered and once she was dead she had her forehead, arms, stomach, and legs filled with rocks, sand, and pebbles. The other girl would draw a line in the forehead, arms, stomach, and legs, and simulate the feelings of rocks by gently knocking on the "cuts", sand by brushing her fingertips over the same spot, and pebbles by poking gently. Then the narrator would say that the girl was sewn back up and dropped into a hole before being buried. When the story was completed the girl who was "murdered" always had a hard time sitting up as your body feels weighed down by the stuff you were supposedly filled with.
We also played a game called cat scratches, where you would turn out the light and tell the story of a cat being possessed by the devil and attacking the owner while a girl lays face down on the floor. When you turn the lights on she has scratches on her back under her shirt.
Games always tripped me out.