Glow sticks inside balloons, some cheesecloth, and glue-on black mouth, eyes, and nostril
How about inserting them within the cooler with drinks?
Black sweats with glow sticks connected.
I did this for a postapocalyptic-themed Halloween occasion. Inexperienced lens on the pool mild, large spiders made with trash luggage on the partitions across the pool, and empty water jugs with glow stick inexperienced inside, a hazard waste sticker, bobbing on the pool.
Take it to a inventive degree!