Aichi Expo: Mori or Kiccoro? Rare solo pin badge. The meaningless expo, bad for the environment, finally ended. My father taught me: Taro Okamoto's words about the Tower of the Sun: "Expos don't need any facilities. It's enough to just look at foreigners and confirm that we are all human." That's true... Great people are different. 2005 Aichi Expo badge. Rare solo. They also released a combo badge. My father, due to work, had to sponsor the expo, so he has a lot of pin badges. I'm putting them all out. These are all things made by destroying the environment.