Wildcats, Unlimited is generally acknowledged as the place to go if you want to show your Duluth spirit. They carry everything imaginable in purple and white, and they will customize almost anything. But they are terrible at customer service. If you order a customized item, it will be weeks before it is ready, and when it comes in, they may not call you. You have to assume the responsibility of tracking your order yourself, or you may not know when it is ready. They also have constantly changing business hours, or they may not be open when they advertise open hours.