Tell students you are going to do a Halloween version of the Hokey Pokey called the Hookey Spookey. Tell them that instead of saying "hands," you will say "skeletons," and instead of "feet," you will say "pumpkins." For "head" you will say "goblin" and for "whole body" you will say "ghost." Have students stand in a circle. Sing the modified song and do the actions. Repeat, allowing students to choose different Halloween words to refer to their body parts.
Help students cut pumpkin shapes out of orange construction paper and then draw faces on them with black marker. Tell students to make their jack-o'-lanterns happy, sad, angry, bored or surprised. Once the pumpkins are finished, turn them face down, put them in a pile and have a student choose one. Explain that you are about to play jack-o'-lantern charades, and that the student must try to get the class to guess the emotion on the face of the pumpkin he has chosen. If students like to compete against each other, keep score; if not, just play for fun.
Supply students with materials to make their own masks. Start with a paper plate. Help students cut eye holes to fit their faces. Then allow students to decorate the plates as they desire. Provide crayons, paints, pipe cleaners, yarn and other items they can use to create the masks. When the masks are finished, punch a hole on each side and attach yarn to keep the mask in place. Have students wear the masks and parade around the room. Award prizes for best mask, funniest mask, scariest mask, etc., so that every student gets a prize.
Depending on the age of the students, you may need to explain that on Halloween, kids go trick-or-treating, and tell them how. Explain that you are going to make bags that can be used for trick-or-treating. Give each student a brown paper lunch sack. Provide crayons, paints, glitter and other items, and allow students to decorate their sacks as they desire. Once the sacks are finished, punch holes in the sides and string with yarn to make handles.