But I've never seen anything even close to this: chain saw carving a car seat. From the Cool Hunting blog:
Chainsaw Rocker, a 1:1 reproduction of a Honda Accord car seat, came from a junkyard find that artist/designer Christopher Chiappa had kicking around his studio. While working with chainsaw sculptors on another project, he managed to convince an artisan to make a rendering of the seat... The resulting sculpture [is] replete with functional brass plated rockers.It doesn't say what wood was used. Get more info and photos at the Cool Hunting website.