To get started, you’ll need 8 of your desired potions and a piece of undamaged armour or sword. In a crafting table, surround the armour or sword with your 8 potions, and the effect will be transferred onto the piece of equipment:
When added to armour, the potion effect will be added to the player for as long as the armour is worn. When added to swords, the potion effect will be added to the hit mob for 10 seconds. All 4 pieces of all 5 armor sets (yes that include chain if you can get hold of it!) and all 5 swords can be customised with a single potion effect. All base and level 2 potions can be added to swords, but not splash potions nor extended time potions. The same applies to armor, except for Healing, Harming and Regeneration. This is because when constantly applied these effects will either kill the player or render them immortal, which is far too overpowered. Plus, negative potions like weakness, poison and slowness can be added to armour, allowing you to apply handicaps to players on PVP servers if you desire. As these armours are identical to the vanilla armors in all other aspects, they can be further enchanted with books or an enchanting table! But beware, these potion imbeued items are classed as new crafted items by the game. Adding potion effects to an enchanted piece of armour will cause you to lose the enchantment. Potions first, enchantments second!