Spellbound bags

Spellbound bags are Jack O' Kazam's special bags scattered all over Toontown during Halloween. There is only one bag per district located at a certain spot from any playground, but a new bag spawns each time one bag is collected. They can also be found in a playground's main buildings, such as Toon Headquarters. When a Toon collects a bag, they receive a "Spooky Surprise" unite that either offers 1,000 jellybeans or a curse, which may be a random cheesy effect or a random species sound effect. A unite can be only used once and must be used before searching for another bag.

Trivia

Spellbound bags were inspired by the idea of Cartoonival bags that were created for Cartoonival.
Using a "Spooky Surprise" unite that grants a different cheesy effect while in possession of a Pumpkin Head does not remove it.
If a Toon had a cheesy effect before they were affected by a "Spooky Surprise" unite, their original cheesy effect returns as soon as the "Spooky Surprise" cheesy effect fades away. Logging out of Toontown Rewritten removes the Toon's "Spooky Surprise" cheesy effect.
A common strategy to find a spellbound bag is to gather a group of Toons and "harvest" them in one district.