The votes are in, dear readers, and you've spoken loud and clear: from our original 23 finalists, your votes have boiled it down to five well-deserved winners who've clearly put time, effort, thought, determination, and old-fashioned elbow grease into their designs for gracing the metal back of Amazon's 6-inch Kindle.

ENGADGET: 's Kindle design contest: we have winners!

Given how much elbow grease is needed to hand-wax a car, it seems unlikely that a few seconds of a spray of wax would do much good.

WSJ: Me & My Car: Is It Better to Buy a Used Car Rather Than New?

But they don't say how--or how much money or elbow grease it will get.

FORBES: Magazine Article

In reality, creativity and innovation function a lot like WD-40: with a little elbow grease and a healthy dose of persistence.

FORBES: Embracing Creative Failure

It's a mixture of water, coconut by-products, sodium carbonate and water-soluble silicone, blended with the notion that eco-sensitive customers will gladly substitute some elbow grease for a garden hose.

FORBES: Don't Quit Your Day Job