There was an article in this month's issue of Architect (I think that is where I read it) about 3D printing of food, basically using edible ink instead of resin or wax and sawdust. And postulating a future where people can have a 3D food printer at home and print their food. Not sure it appeals to me on a foodie level, but I could see it being very useful for gourmet chocolates or our friend's friend who is a chocolate sculptor.