Making effective QR codes takes work. To shortcut the amount of learning and work required, you can look at how others are using QR codes. By using the best techniques you find and avoiding the worst problems, you can make your QR codes be the best they can be.
Today we look at a QR code you can find on Coop Sports Super Skim 35. It measures about 1 inch square but does not include a call-to-action but does include a URL.
This particular product is a skim board. As the waves hit the beach and recede, a thin layer of water is left on the sand. Using this board, people run along the beach, throw the board on top of that thin layer of water, and skim across it, often landing in the water. Not too dangerous and a whole lot of fun.