The Evil Clown Toy is a vicious entity disguised as a toy jack-in-a-box.
When Eduardo Rivera captured an Evil Clown, its comrades chose Eduardo as a replacement. They left the Evil Clown Toy on the mail slot of Eduardo's Place. When Eduardo played with it, the entity sprang out and bit Eduardo in the arm. Eduardo slapped it aside and ran to Ecto-1. He reversed over the toy and squashed it into a gooey mess. However, the damage was done and Eduardo began to transform into an Evil Clown.