Looking for a useful bathroom decoration? Give your brain some exercise while you're doing your business with these rolls of Sudoku toilet paper. Complete the grid so that each row, each column and each 3 by 3 box contains the numbers 1 to 9 with repeating numbers. Our two-ply tissue is printed with health-safe, water-based ink. Find even more funny gag gifts and birthday gifts on our website 200-sheet rolls.