Why not invent a backstory for the existing items? When you come across an item, express giddiness at discovering the long-lost crown jewels or your realm. Or a dead realm's crown jewels, allowing you to pass as their successor. Or some ancient family heirloom. Or a sacred religious item.
It's much easier, I think, to create backstories for existing items than to create items for backstories.
True, and i did that for a few items, but most of the time it doesn't happen.
