When I was in Munich, I’ve seen a Japanese “Good luck cat” in the window of the sushi takeaway opposite of my university building. A white cat that waves its arm, powered by a tiny solar panel. And I knew, I had to have such a cat. I ran to all the Asian shops in town, but the only such cat I found was sold for an impossible price of more than 100 EUR (mind you, these little cats are of plastic, they need to be light so the power coming from the small panel is enough to move the arm).
Yesterday, we went into Tokyo, and to make it short, such a cat is now sitting on my office desk. I paid less than 10 EUR for it. And it waves its arm AND wobbles its head.