The digits of Pi go on forever. Someone recently printed a mile of Pi on a roll of paper. This toilet roll cover shows just a few of them.

You will need approximately 60 metres of the main colour and 30 metres contrast.

The ebook contains patterns for eleven knit and crochet toilet roll covers based on mathematical concepts. It also has a section that will help you to design your own covers.

The patterns are not available individually but if you want just one I can supply it in return for a small donation to my favourite charity.