Halloween Happy Meals are available starting Tuesday at McDonald's and include a fan favorite "Boo Bucket" a trick-or-treating pail as the toy.

The buckets come in either an orange jack-o-lantern, a green witch, or a white ghost as the throwback characters "McPunk'n, McGoblin, and McBoo" which were introduced in 1986. The buckets have been off the menu for 6 years. They are available Oct. 18-31.

McDonald's posted about the promotion to its 4.6 million Twitter followers.

The move comes after McDonald's announced "Adult Happy Meals" last week for the first time ever. These are offered with either a Big Mac or 10-piece chicken McNuggets along with a toy meant for adults of the characters Grimace, Hamburglar, Birdie or Cactus Buddy.

The news generated attention on Twitter.