Isn't it funny how ghosts rear their heads at this time of year? They seem almost charming at first, but when darkness falls, those innocent expressions are a bit more menacing.
To make a floating ghost, snap one or two green eight-hour light sticks so they glow, and insert them into a white balloon; inflate balloon, and tie closed. Use a black marker to draw the ghost's ghastly visage. Repeat to make his friends. Then hang ghosts with transparent tape, and lower the lights.

THE BEST GHASTLY LOOKING GHOST EVER!!!! I'M LINING WY HEDGES WITH THESE SPOOKY SOULS.