Okay, so this is something I heard that I'm interested in.
From what I've heard from various different sources, if you fuse a Shiny Kyurem and a non-shiny Zekrom, you get shiny Kyurem-B.
What I also heard, was that if you de-fuse them they will both be shiny.
Now I'm not 100% sure if those statements are true, they're just what I've heard.
But assuming they're true, could I fuse a shiny Kyurem with a Zekrom to get Kyurem-B that's shiny, then defuse them to get shiny Zekrom. Then fuse with another Zekrom and have shiny Kyurem-B? And possibly continue that process to mass produce shiny Zekroms?