This is a limited time release button. Disney changes them every so often. They are not tradable for pins but they are great souvenirs.
This is the Walt Disney World "Happy Birthday" button with Mickey Mouse holding a birthday cake with candles. There is even an area to have it personalized as well. Something unexpected, small and special. Disney does free basic personalization (with a black sharpie marker) by request. We can also take the button to the Disney Artists and have the same personalization they put on ornaments done as well for $6 per word. This listing will charge for the first word only so if you need more than 1 word there will be an additional payment needed.