Yes! I know it sounds dumb too, but when my dad got it I swear that's what it was for :D
What you do is after you've opened your beer, if you have to set it down somewhere, you put this helmet on the mouth of it and that way you always know that it is your beer! It was pretty funny seeing a table full of beer bottles with everyone's favorite team helmets on them :), wish I had more of these!
No one is going to take it and you'll never have to replace it prematurely with the packers letting everyone know that that pint is yours :)
Of course you can just put this on a shelf or in your collection area as well, no beer required!