Sudoku On Toilet Paper

(CBS)  The ultra-popular logic puzzle Sudoku can be found in magazines, newspapers, books, and online. You can even download it to your Palm!

And now, the puzzle has been taken to a whole new level: It's available on -- toilet paper!

Most rolls have 240 sheets, with puzzles imprinted on each one. They sell online for $8 - $15.

It's been such a hot seller, several of the Web sites offering it say they can't even keep it in stock.

So, The Early Show decided to create its very own, mock version.

Co-anchors Harry Smith and Rene Syler ran it by the crowd in the plaza Thursday.

To watch the segment, click here.

To play Sudoku, click here.