Well, for a school project, I have to make a valcano with a partner. We agreed that we should use Mentos and Coke rather then vinegar and baking soda. He said he wants to put Mentos in his mouth with some Diet Coke, but, an article on Wikipedia says that it would result in vomiting gases... Well, I guess I'll just re-watch that MythBusters episode... see what they say about it...