Here you go! I was too lazy to go to the kitchen and actually take a picture of ours, but this might give you an idea. (Although, these are pictures of our mugs and my daughter, don't think I just have random pictures of mugs laying around!)The handles come in blue too, and maybe another color, I don't remember. They sold both colors at Pop Century.
They are only for use at the resorts (supposed to be only for the same trip, too--there have been many 'ethical' debates over these cups on other Disney boards).
You don't have to be staying in the hotel to buy them, but they can only be used in the resorts. We weren't actually staying at Pop Century when we bought the cups.