Simple Feruchemy is a mod that adds feruchemic rings and bracelets from Mistborn, by Brandon Sanderson.
In these rings you can store physical capabilities like speed, strength or energy, leaving you weak while storing it, but allowing you to access those reserves later on.
In practice, this rings let you store potion effects for later use, as well as other effects that aren't potion related.
This mod also adds a few ores and alloys used to craft rings and bracelets.
Implemented rings:
Steel: stores Speed.
Tin: stores Night Vision.
Pewter: stores Strength.
Zinc: stores Haste.
Gold: stores Regeneration.
Bendalloy: stores Hunger.
Copper: stores Text. It acts as a private book and quill.
Brass: stores Fire Resistance.
Nicrosil: stores Experience.
