My latest Christmas Present

This here is my latest Christmas present. It came with my meal the other day. What is it exactly? I'm not sure, but what I am sure is that it's a piece of plastic about the size of a penny.

I found it in one of my favorite little pub snacks which i translate as "drowned-man sausage". It's cold sausage marinated in a jar of oil along with onions... Dig in...