The horchata sherbet can be prepared up to a month in advance and makes more than you need for these shakes. Try it solo with fresh berries. Recipe adapted from Aran Goyoaga and her blog, Cannelle Et Vanille.
These spirits may look frightening, but they're actually quite sweet. Make the Faces with melted chocolate painted inside the glass. A ghostly white vanilla milk shake is topped with piped whipped cream. And although you wouldn't want these spooks to haunt your house, they would be welcome at a Halloween get-together.