If you have enjoyed the Sudoku Toilet Roll, then chances are that you will flip for the Mind Trainer Roll as well. Or chances are, you may have gotten over the need to use bizarre toilet rolls completely, in which case you can give the “Mind Trainer” an absolute cold shoulder. In any case, the good news for puzzle addicts is that the Mind Trainer (from the makers of the Sudoku Roll), is going to offer a more diverse range of puzzles and mind games on a… toilet paper roll.

The basic premise is simple. If you enjoy your otherwise quiet time at the loo, why not use the Mind Trainer toilet roll to tweak your brain along the way? Each square strip of the toilet roll has an interesting puzzle or mind bender in color to keep you occupied. Be prepared for complaints from other members of your home though, as you will be spending extended time in the loo. And for a bruised ego as well if you have solved a really tricky puzzle on your loo time, as you may not be able to show it off.

Available for around $11 a roll.