[youtube]https://www.youtube.com/watch?v=cGMCmbLq2qs&list=UUprPL2xor8Wr87XPQiuM6bw&index=1&feature=plcp
At Chicago's Alinea restaurant, "chefs defy gravity": green apple-flavored helium-filled "balloons" have become its latest (and lightest) dessert delicacy. Diners can either pop the balloon with a pin, or devour the whole thing at once. And yes, your voice will get a few octaves higher.