Ouroboros Steak could be grown by the diner at home using their own cells, which are harvested from the inside of their cheek and fed serum derived from expired, donated blood. The resulting bite-sized pieces of meat, currently on display as prototypes at the Beazley Designs of the Year exhibition, are created entirely without causing harm to animals. The creators argued this cannot be said about the growing selection of cultured meat made from animal cells. Despite the lab-grown meat industry claiming to offer a more sustainable, cruelty-free alternative to factory farming, the process still relies on fetal bovine serum (FBS) as a protein-rich growth supplement for animal cell cultures. Ouroboros Steak, named after the ancient symbol of the snake eating its own tail, cuts out the need for other animals by drawing exclusively on human blood and cells.