Ed, Edd n Eddy
Sarah holding shrinking potion

The Shrinking Potion is an elixir that Sarah made with a chemistry set that has the ability to shrink anyone who drinks it down to a smaller size.

It first appears in “The Incredible Shrinking Day”, where Sarah mixes the potion in three glasses of lemonade, and gives them to the Eds so that she can play with them around like dolls, prompting the Eds to escape. In the end, the Eds revert back to their original size, but accidentally knock themselves unconscious in the process.