Bark4Beer is a retractable bottle opener and dog collar all-in-one. It’s a must-have accessory for the guy who loves his dog — and his beer — not to mention it makes finding that evasive bottle opener as easy as yelling, “Here, Boy!The Bark4Beer collar is designed to fit most medium to large dogs and it’s able to extend as far as 2 feet. Bonus: If you manage to teach your dog how to fetch your beer, you have earned the right to call yourselves the ultimate party animals!