imagine all the roadkill out there, the possibilities are endless ...
When I was in college, taking my studio art courses, I was told an interesting story by one of my professors. Several years before I went to that college, there had been a student who would collect roadkill. He'd take the animal and encase it in a block of concrete - I think he may have written some sort of inscription, or date, or poem, or something in the concrete. Once the block of concrete had set, he would return the block to where ever he had found the animal in the first place.
I guess he made several of these memorial "sculptures" during the course of a semester. Eventually the semester ended and the student left the school, never to return, but he left one last sculpture behind in his studio space in the art building. It was a big block of concrete and no one wanted to take the time, or make the effort, to haul it away, so it sat there...time passed. Then, one day, the concrete block split and a horrible smelling goo began to ooze from the cracks in the concrete, filling the fine art building with its stench. Suddenly, people were motivated to remove the sculpture.
I think there's a lesson there for all of us, if we look closely enough.