Legacy Items
I've been home-brewing with serious considerations of publishing Legacy items which include weapons, armor and rings. Such items usually have ancestral/bloodline ties to the bearer of the item, though it could be tied to a church as well - I still prefer an ancestral tie.
Swords, armor and items can be legacy, but since they are more powerful, they are rare, except for important people, like the PCs and powerful NPCs.
Swords and armor get bonuses and enhancements, bonus feats and abilities.
So far I've only been playing with legacy magic rings, that contain different powers and enchantments that awaken once a PC reaches appropriate level, it has 7 powers acquired at 1st, 4th, 7th, 10th, 13th, 16th and 19th.
Weapons and armor should go a similar progression from +1 to +5, then enhancements like keen, axiomatic, holy, etc for two special powers. Armor might allow more dex bonus and DR adjustments over +5.
I'm probably going to publish the Legacy Ring in an upcoming product in a month or two, and will be a Pathfinder Compatible product.
GP