Scientists at the Georgia Institute of Technology have developed 'contraceptive earrings' which could protect against pregnancy. These 'adhesive patches' can be stuck to your jewellery. The drug is then absorbed into the skin. These patches could also be attached to watches, necklaces and rings over the coming years. The contraceptive patch needs to be changed periodically, approximately once a week. While the patch has only been tested on pigs ears and hairless rats currently, it might be able to deliver sufficiently on humans. Tests revealed that the patch could produce the necessary amounts of the hormone.