I found a cat shape in the Silhouette shop. Cut him out twice in chipboard and twice in black card and stuck all the layers together. Their save the date and invitation had a piece of ribbon , the wedding colour theme, on it so I pinched the save the date piece and popped it round his neck with a tiny shell charm from the random button collection from the Fruit Pixie.
I think the tradition has died out because I was the only one who gave her one and I think she thought I was slightly mad! I think she liked him though as he was hung on their wooden name over the fireplace.