Jack o'Lantern

Jack-O-Lanterns are a new feature implemented by Notch in the Halloween Update of October 31st 2010. They are intended as a purely decorative addition although they can also be used as a light source. Their luminance is somewhat greater than that of the torch. They appear identical to unlit pumpkins in the inventory.

A Jack-O-Lantern is created by combining a pumpkin and a torch (See Crafting below). A video guide on how to create a Jack-O-Lantern is below as well.

Jack-O-Lanterns produce the same amount of light and share the same ability to stay lit underwater as Lightstone, making them a more effective, safer, and more easily obtained method of lighting than either fire or lightstone.

Jack-O-Lanterns and pumpkins are two of the many blocks that are broken more quickly with a sword, but still have double damage on the sword.

Glowing Jack-O-Lantern Tutorial

Trivia

 * The Jack-O-Lantern, unlike torches, can be placed underwater and can still stay lit, making it one of the best sources of light for water.
 * As with the pumpkin, a Jack-O-Lantern can only be placed if there is another block below it. However, it will remain in place if you remove the block below it after placing it.
 * The Jack-O-Lantern is also an infinite source of light. This may be an alternative to the Lantern once a future update makes torches finite.
 * Mysteriously, with the 1.2.0_02 update of November 4th, all Jack-O-Lanterns on worlds were converted into pumpkins.

Bugs

 * Jack-O-Lanterns have the same icon in the inventory as pumpkins, making it impossible to tell which is which unless you place them. However,  this doesn't allow you to stack Jack-O-Lanterns with pumpkins.