Halloween creepy party punch, freeze water in a surgical glove for a scary ice cube. I've always liked this idea. You can also fill the glove with the punch so the ice doesn't water it down. Note: make sure NOT to use the powdered gloves.
Glow stick in a balloon, then blow up, then draw black eyes and cover in cheese cloth. You could blow up the balloons with helium tie them to a golf tee and stick it in the ground. That would be a real floating ghost!
Cute Halloween door idea ~ Bat-Filled Front Door These felt bats are easy to make and ensure your house looks extra spooky. All you need to do is trace a bat shape onto a piece of felt and cut it out. Repeat until you have a swarm of them.
Insert dowel into an plastic-foam ball. Cut up both sides of white garbage bag; lay over the ball. Layer one yard cheesecloth over bag. Gather below the plastic-foam ball and tie with ribbon. Use safety pins to attach edges of ghosts together.