A vending machine from Nanjing, China is making its round around the interweb today because it sells something no other vending machine in the world does … live crabs. It even comes with 100% customer satisfaction: if buyers get a dead crab, the maker promises theyâ€™ll get three crabs for free. The machine keeps the crabs “hibernating” at 5 degrees Celsius at all times. Each crab costs between $1.50 and $7.50, depending on the size. The manufacturer claims they sell around 100 crabs daily, resulting in about $500 in sales.