Some labs already do that to “print” skin and fat cells , but it’s ridiculously pricey and not sustainable , any organ printing in the future will require a clone of yourself that get harvested then discarded and Idk about that ethically big yikes

Period blood wise : I think the best use cases would be to use it for your personal products or skin treatments it has insane regenerative properties and I think some people are already doing it , if you have access to a lab you can dyi it , isolate the stem cells from it etc