Cheyanne and I made this cute pop up ghost today. You will need: A plastic cup, plastic grocery bag, string, black marker, scissors, craft stick (tongue depressor or straw) and materials for decorating the cup. Decorate the cup. To decorate the cup, we glued on Halloween foam pieces. I made a ghost with a tongue depressor, plastic grocery bag, string and a black marker. I think I straw would work the best, it would make a smoother up and down movement. Cut a hole in the bottom of the cup and put the bottom of the stick through the hole. Pop up. Pull down.