special uses for spray foam?
Sounds like a great idea. Living in Florida all my life, I have only seen the "white-stuff" one time, back in '77. I have used the foam sprak, and I don't see any reason why it wouldn't work. The only problem, as mentioned before, I have no idea as to how many cans you would need. You could build it as stated, out of a wood frame, with a wire mesh to hold it all together, and give it some "body". I liked the ide of the electric knife to cut and form the item.
If you make something, why don't you post a photo. I'd like to see it.