Jogiriya Joe ga Yattekuru

Everyone has things and people that they want to cut out of their lives. When that happens, just call Jogiriya Joe. Joe's snips will cut anything in half, if you are ready to pay the price of having something of yourself cut off in exchange.

(Source: Shonen Champion Comics, translated)

Note: Original serialization was eight chapters ending 2009-03-26. An additional one-shot was published to celebrate the release of the electronic edition in 2014.