Make Leather is a lunar spell unlocked by training at the Livid Farm. It costs 250,000 produce points to unlock (roughly 11 hours of Livid Farm).
When used it tans 5 hides of any kind. This a great way to make money while training magic, although the time and effort required to unlock the spell may seem unappealing to some. Using Make Leather, a player can easily gain over 75,000 Magic experience, and make significant profit depending on the cost of the hides that they are tanning, as it is possible to cast the spell 850 – 900 times per hour. However, other methods that require a similar magic level are faster experience (such as String Jewellery).