Such openers for beer bottles are put in many foreign bars / pubs. They not only allow you to collect covers, but also serve as a kind of image element of the interior. In the conditions of our reality, where beer is mainlyopen barmen or waiters, opener is not so relevant. Nevertheless, it can become a chip of the institution, because there is probably nothing like that of competitors, most likely not. If there is a desire, experiment. Large bottle openers are made easy and their cost is low.