Wow, nice idea, how come i didnt think of that.
anyways, to answer your quesiton, it all depends on the density. i increased the density of tori's feet by like 10 times, and then it like sank halfway through the floor.
so yeah, its possible but wouldnt it be harder to do if you tilt it?, i mean if it was a long titled piece and one end sank in, by the time the other started to sink, the other side would have allready poped out of the ground
maybey... but its a great idea
KEEP UP THE GREAT WORK