You can actually buy Droobles. It's like cotton candy, but when it dissolves it turns into gum. I don't know if you're supposed to swallow it, but I do. You can buy it at Dylan's candy bar in NYC. It turns your mouth blue!
I absolutely LOVE the Exploding Bon Bons! I have to try that! I remember a few years ago for Halloween they had an Oreo knock-off cookie that had Pop Rocks in the icing, but you couldn't see them. They got quite the same reaction.
I can't wait to try the bon bons!