For the sports fan who has everything

Just when I thought everything had been officially licensed, I was searching on the internet and found MLB officially licensed door knockers. I know nothing makes me think of baseball like knocking on someone’s doors. Who is actually going to reap the benefits from something like this? Door to door salesmen? Jehovah’s witnesses? It says it is the perfect gift for groomsmen but I have not figured out why yet. If you get this gift for the sports fan in your life and they tell you they already have it, then you know they officially have everything!