Let me start by saying that this is not a joke. This actually exists. Japanese toilet manufacturer TOTO has created a bike that runs on feces. The human waste, which is stored in the driver’s seat, is turned into biofuel that powers the three-wheeled chopper, according to WTOP. The company says it hopes the bike will help raise environmental awareness and reduce CO2 emissions in bathrooms by 50 percent by 2017, motorcycle magazine Clutch and Chrome reports.