would like instructions on how to scuplt a whole roasted pig with apple in mouth.

Thanks

How realistic?

Very - http://members.nuvox.net/~zt.proicer/cakepict/pigcake.htm
http://www.coolest-birthday-cakes.com/birthday-cake-ideas.html#c7

This is a pig I did for a Pig Roast. To make this cake I baked 2 cakes in the magic mold pan, (the doll pan) I then sliced a bit off the bottoms, so they wouldn't roll, I then cut a bit off the the narrow ends and put those ends together. From there I carved until I had the shape I wanted. I used the extra cake pieces for the pigs snout. His ears, tail and apple are made from fondant. (they apple is painted for that glossier look.
Hope this helps

http://www.cakecentral.com/cake-photo_61036.html