Squash Serum

Squash Serum is an item included in the Halloween 2005 update. It is traded by the Necrid Horsemen Halloween Collectors in each of the major cities (except The Amnoon Oasis). In addition, the Serum is handed out as a random prize for players who obey the Mad King when he appears at Lion's Arch.

It causes a translucent Jack-o'-lantern with a sparkling stem to appear around your character's head for a brief time. Squash Serum has no other effects.

It is unknown how long this will be included in the game. Most likely it will be removed after Halloween. This may make hoarding it now and selling it later quite profitable.