Then again, it's possible that the goal was to attract few children. I honestly can't think of another reason for the person in charge of creating the playlist for the event to put "I'm Sexy and I Know it" on the playlist, much less for who ever was in charge to let it play in full.
Anyway, here are some pictures.
Coffee Filter Chromatography:
|Draw on a coffee filter with marker, and then brush with water. |
Black marker is especially cool.