You are not a body. You are a spirit. You animate a body. The body is made from chemicals present in the physical world. When you stop animating them they will gradually brake down. The only consideration really is the smell. Personally, I want my body to be cremated and then I want my ashes thrown into a pile of dirt and mixed around. But, their are endless creative possibilities. You could have someone take possession of your body and put it in your asshole neighbors car minus your head or something like that. People seriously lack creativity in this area.