Do you think this is a cute unique Christmas gift idea?

I think that is a really cute idea! Maybe you can make up a penguin love story of your own to present with it.. like the story of how you met and now you know he is the one so here is the rock to prove it. (I would make sure to include an explanation of the penguin rock) Print it out on nice paper and laminate it so he can keep it forever.. If you don't want to create your own penguin story, you could just write a little explanation of the gift. It is an awesome idea but I'm not sure a guy would understand its purpose without an explanation. Good Luck and Merry Christmas!!