Do you remember those bibles printed on very thin, hard paper? Many years ago, the people who published them - might have been the Bible Society - realised that there was a huge vogue for them in those parts of the world where missionaries had gone. Excellent, they thought, we'll fulfill the demand as best we can.

Off went huge shipments of bibles to the said foreign parts. It was only years later that they discovered that the pages such bibles made great roll-ups...