The Rock Balloon was introduced in the episode, "Krusty Katering."
Description
It was made out of multiple balloons. It is purple, violet red, light green, red, and yellow. It is lumpy and when you hold it, you'll fly away!
History
When a kid at the birthday party wanted a balloon, Patrick had to think fast. Then, he made a rock balloon. He gave it to the kid and then he flew away.