Hot fudge sundae in a cookie bowl - get a cupcake pan and fip it upside down. butter the mounds. put cookie dough over each mound and bake. take out and let cool before removing. you now have cookie bowls! fill with ice cream and enjoy!
Edible Jell-O Glasses - Actually, made from agar-agar, so their vegetarian. Proposed as a creative way to reduce waste.though I'm pretty sure people hang on to their drinking glasses. Cute idea, anyway.