Sculptures made from stacked food-tins

Here's a gallery of impressive stacked tins of food. I have no idea what this is about, but it's jaw-droppingly cool.

Link

(via Make)

Update: Nick sez, "I think some of these pics may come from a Vancouver BC competition which has been doing this for a few years."

Update 2: Tomo sez, "the canned sculptures were part of a charity event held annually in
NYC called Canstruction. Several engineering and archiectural design
firms in the city submit entries and awards are given out in various
categories. All cans used are then donated to the regional food bank.
A large portion of this past year's went to the victims of Hurricane
Katrina."