Ever put down your cup at a party, and then since you weren't sure which was yours, you wasted a whole soda and got a new one? No more, with Etch-It Cups. Each red or white cup has a black stripe, in which you can etch your name or any design, with nothing more than your fingernail. Now you can put your cup down and pick it up again. This saves money and waste on cups as well as beverages. Cool idea!