A friend that I've known since grade school wrote on her Facebook status that she was giving her daughter (who is Bee's age) a glow in the dark bath. Of course, there were many comments asking how in the world was she making the bath glow in the dark. GLOWSTICKS! Brilliant. Especially this time of year, when they are cheap for Halloween. Michael's has two packs on sale, two packages (4 glowsticks) for a dollar. Score. The girls loved it.