Of all the ideas you wish you had, this one's probably way up there.
The idea behind Wants for Sale is simple, but that's what makes it absolute genius. New York artists Christine and Justin simply paint pictures of the things they want. Then, they sell those paintings for exactly the same price as what those objects cost.
The artists' tech "wants" include a Guitar Hero controller (the painting costs $64.98), an iPhone ($649.17), and, uh, chicken wings ($12.70).