Prove You're Hot Stuff

Hold the bottom onion-shaped bulb of this 4" glass toy in your hand and watch the liquid (green, red, blue or purple, we'll pick) magically bubble up into the top chamber and keep on bubbling like the dickens, as your grandmother used to say. The magic is ethyl alcohol and physics. WARNING! The glass if fragile and the liquid is nasty. If you drop the thing in the kitchen it will eat the finish off the tile and permanently stain the floor, so don't let the kids handle this item unsupervised.