Give me an altar in House C where I can throw in a cloth armor / robe (random, named, or crafted) & some trap parts and get out a docent with the exact abilities that cloth had. And vice versa.
I bought Warforged and Monk from you and rolled up a WF Monk to continuously run into problems where I can use monk armor from new updates or form classic stuff, like the Icy Raiment. I have less fun having bought more from you. That's silly.
Ditto WF Artificer, thought WF casters usually get docents of their stuff, which must be annoying to non-WF. The laundromat could mean much simpler loot tables for everyone while making your race customers much happier.
It would also make TRing to and from WF a lot more appealing.