Self-piercing "sleeper" earrings? - self piercing earring hoops

When I was a kid, I thought, what is a start-up bed had a gold ring of Pentecost a sharp point at one end and a small tire in the other, where the sharp point would take about 4 or 5 days to the ear insist has no idea where I can be now I've tryed to get any kind of research and found nothing Please help me I want to return.