Here’s a fun one. My friend rescued a BM800 from craigslist for me. It was non-functional and the seller was essentially giving it away for parts. Although my RS/47 mics are essentially BM800-style bodies, this is was a real authentic cheap-o amazon quality BM-800 with a silly little capsule and a very minimal Schoeps style circuit (all surface mount).
I gave it the full treatment with a new Brass Ring k47 style capsule and my jaSb-800 board with the optional internal pattern switch. It also got a cool two-tone paint job with vintage green and a black bottom ring. The gold accent ring under the headbasket was already there. This mic comes with no case or pouch, but I will include a shockmount with it.
That $20 amazon mic is now a pro-quality studio mic that can find uses in any studio. This mic has the same components as my RS/47 or any of the other transformerless upgrades I do.