My cure for hiccups...
Light 2 or 3 paper matches and drop them into a small glass of water BEFORE the heads burn out. Drink it slowly and the hiccups stop! The matches will stick to the side of the glass, so you don't have to worry about choking on them.
My understanding of the way it works is this: Hiccups can be caused by little hairs in your throat sending mixed signals, and the carbon/sulfur in the burning match heads suppresses these hairs briefly, fixing the "short circuit" and stopping the hiccups.
It's an old bar trick, and always works for me. Good luck!