Shirting expert Gitman Vintage and UK retailer End Clothing collaborated on a small lineup of oxford shirts. While oxford shirts are pretty standard, and every guy has at least one, you may want to make some room for these.
From afar, they look like most shirts, except that when you take a closer look you'll see that each one has a sick elbow patch in either a bandana or camo pattern. It's an easy way to work patterns into your wardrobe. Knowing Gitman is behind this should also help—the brand always makes quality button-downs.
Pick one up in white or blue at End Clothingnow.