For a couple 100 gold you can by the Gin-Ji Knife Set from the Gina Mudclaw in Halfhill in the Valley of the Four Winds. After killing a human or beast you can use the knife to cut the body up into itty, bitty, little pieces. When your done the corpse will be turned into nothing but a pile of guts.
My hubby thought this was a pretty cool item, but I wasn’t too impressed. I never got a good pic either so the one above is from Wowhead.