The kids were given these by their school to commemorate the diamond jubilee and prince will and kate getting married. No matter how many times I said to the kids "don't play with it and put it away for when you're older", out it came and missing did that little coin become. So we got a replacement and a week later the little lost coin became lost no more. So we have an extra coin... Still you know what they say. "See a penny pick it up, and all day long you'll have a penny." Or something like that anyway.