Rapex

The Rapex (later called the Rape-aXe) is a prototype anti-rape device invented by South African medical technician Sonette Ehlers. Ehlers proposed to distribute 30,000 of the devices in South Africa during the 2010 World Cup and hoped to make them available for sale after a “trial period”, but there no indication that the product has ever been released to vendors, according to Snopes.