these guys have a good thing going on at Wants for Sale. They make a painting of what the want and then price it for what said item costs. So for a painting of a beer it's $7 dollars and for a bottle of Aspirin the price is $9.99. You get the idea. Pretty cool idea and it seems to be doing well for them. Adds an interesting dynamic to the form versus function argument.
Some selected pieces below, check out their site for more. Wants for Sale