Leather collars are decorative items that can be equipped on all genetic animals in their GUI. They are RGB dyeable just like the vanilla leather armor and horse armor. Dyes can be also be removed using the vanilla mechanics. There is a craftable plain leather collar as well as collars with decorative iron, gold, or diamond rings which can be obtained from village leatherworkers or wandering traders. A basic leather collar can be crafted with one piece of leather. An animal will drop any collar it was wearing when killed.