Love this idea! I would have more than one glow stick on hand in case one doesn't put out enough glow. I would also put the glow sticks in sealed plastic baggies for safety in case they opened up. This site has several good ideas for Halloween.
32 Unbelievably Cheap And Beautiful DIY Photo Backdrops. Some of these would be pretty just in a room. I think this would be a cute photo background for the bachelorette party. I like the gold fringe and the baloons/banner