Here's a magical addition to your pin collection. It celebrates the great 100 Years of Magic celebration at Walt Disney World. It's about 2-5/8" wide. It comes with the 2 batteries (2030) that it requires. But it's vintage, so no telling if the batteries still work. You may have to replace those to get it to light up.

But it's new on its "card". It's part of a set of 5 pins (showing Epcot, Disney-MGM Studios, Magic Kingdom, Animal Kingdom and 100 Years).

The pin (#7558) would illuminate whenever you encountered special magical moments at the parks. But those triggers are long gone. But you can turn it on yourself. 

-- It's been stored in a pet-free and smoke-free environment.