it is a pumpkin that is carved with a spooky face
Jacques à la lanterne
Party supply stores would carry them. Online, there are free stencil downloads on marthastewart.com that you print off yourself, and packaged stencils for sale on amazon.com.
One of my favorite Jackolantern styles is to use the inside of the pumpkin in the Jackolantern. Once you have stenciled the pumpkin, take some of the insides and spread them around to add to the gore.
the ever classic bob for apples, pin the bolts on Frankensteins head, a costume contest, making lollipop ghosts (take tootsie pop cover in white fabric, tie where the candy ends, draw face! so cute), donuts on a string, a gift from mummy (take present (jackolatern lantern perhaps) and wrap it lots of times, each person unwraps one layer and passes it on, person to unwrap the last layer wins the object), and more. search the Internet the possibilities are scary!