It's possible you are thinking of:
* The "hidden Mickey": The classic "hidden Mickey" shape made of three circles can be found in many places around the parks, sometimes in the shape of a button. However, this isn't specifically related to the Italy pavilion.
* A specific detail or attraction: It's possible you're thinking of a specific item or element within the Italy Pavilion. Can you provide any more details? For example, where in the pavilion did you see the buttons?
* A souvenir or collectible: Perhaps you saw a red button souvenir at the Italy pavilion. These are often sold in the shops there.
If you can give more information, I might be able to help you find what you're looking for!