When they went hollow and all that time passed for the chosen undead to come to lordran their armor's outer layer has detereorated.
Metal shoulderguards and leather of hard leather armor went away but managed to preserve the parts below.
Cleric helm's chain rotted away and the metal part's first layer went away but the second layer turned black from all that starvation and getting respawned in the bonfire again and again.
Leather gauntlets disappeared completely. (Their names are leather gauntlets but they have poise which leads me to think that they are chain so I had the lead to make those rot away as well)
Chain leggings' leg part disappeared and the crotch part got left out.... (Praise the Sun!)
The sword and shield broke through swinging them aimlessly around since they went hollow. And without a blacksmith that is what happens to your equipment.
You can make the rings whatever you like and since this is a simple 40/40 build you can use an older 40/40 character to do this as well.