If these ghostly balloons are appealing, there are more easy, cheap crafts that will make your house the spookiest on the street. Smaller glow sticks and paper towel or toilet paper rolls can be used to make glowing eyes. Just cut out the shape of eyes in the tube, slide the glow stick inside and hide them in bushes and trees.
You can complement your giant glowing ghost balloons with a garland of smaller glowing ghouls. Just take a strand of white lantern lights, wrap the balls with white fabric and draw a scary face on them. It's also very easy to set up a scary scene in your window. Grab some black paper or cardboard, cut out some silhouettes like spiders or bats and tape them up.