This list by Complex collects some of the most iconic designs of everyday objects. It's worth noting that the iconic design might not be the best, or most expensive.
"Iconic" is generally perceived as a compliment, since we often attribute success to merit, rather than happenstance. We've been taught to do this because it's the fiction that undergirds all capitalism, and certainly that of the American dream, which allows us to shrug off poverty as if it is merely the result of laziness. But anyway. "Iconic" is really another way of saying a design wins the Family Feud version of the question "What does a stapler look like?" In many cases, there was brilliance involved. In others, who knows?