Airline waste is a real problem: all those extra plastic cups and forks, all being schlepped around the world in a machine that emits tons of carbon waste. But what if you could eat your garbage? So now Air New Zealand is experimenting with edible coffee cups. They are made from flour, sugar, eggs, and vanilla essence, so can we just call them cookies? (Or, fine, biscuits.) Twiice, the family-owned business that manufactures the cups, swears they dont leak and that they stay crisp at least as long as it takes to drink your coffee, and longer. The companys cofounder, Jamie Cashmore, credits the cups to Kiwi ingenuity. The cups have already been available at 14 earthbound cafés in New Zealand.