Well, kind of. Its main use is to customize existing stuff, like printing pictures on a phone case, custom key caps, and such. I don’t know what the ink is made of - I’m guessing a UV curable binder and pigments? Or liquid gold, judging from the price…

Yeah, everybody is making jokes about cooking with blood in this thread, but they’re really just describing German cuisine. I remember eating blood gruel with potatoes and spinach as a kid. Tastes awful.