One of the biggest mistakes business owners make when designing their custom buttons is that they try to squeeze too much into the design. Even a relatively large button, like a 6 inch round button, can only fit so much in terms of graphics and text and be visible from far away. Buttons are often called walking billboards because they can catch peoples attention from far away. But think of the billboards you actually notice when drivingchances are they rely on a few short words or catchy phrase, one large graphic, and primary colors. Too much information, even on a billboard, is too much for someone to take in completely one go. When it comes to billboards and buttons, less is more.
Think of common company logos you see every daythe Nike swoosh, the McDonalds golden arches, Mickey Mouses ears. Even with no text 
you instantly know what company that logo belongs to; no matter how big or small, that logo is instantaneously recognizable. You want your custom button design to also be instantly recognizable because you might only have a second or two for it to catch someones attention. With an overly designed button the viewer has too much information they are trying to process in those few seconds, and oftentimes nothing actually makes an impact.
For instance, imagine you own a restaurant and want to promote a new special drink. You could create a custom button for your servers to wear that has a picture and name of the drink, or even just a call to action like Ask Me About of New Years Eve Specialty Cocktail! with a firework design or some other colorful graphic. Its simple and straightforwardenough to catch someones attention but not so much that it becomes an eyesore. Now imagine trying to read a button that has four different drink specials advertised on itthe font and pictures would be so small patrons would never actually be able to see the specials, let alone order them. At that point the message of your button is lost and youre wasting valuable advertising space, as well as your budget. If you want to promote a lot of items/specials it might just be worth creating several different buttons that your servers can rotate wearing.
Its easy to get carried away with one too many ideas as you are designing your custom button, but always remember that less is more. Fashion legend Coco Chanel supposedly said, Before you leave the house, look in the mirror and take one thing off. The same rule should hold true for your button design. Always think if there is anything you could take away from your design that would actually enhance the value of your button. By no means are we suggesting your button has to be boring to be effective, but simple designs can have a huge impact.