I think "magazine" would be a proper term. The lips can be used for lifting a bottle cap, provided one is stupid enough to try. Itīs just a question of technique. Believe it or not, if you know how to do it, even AOL-CDs can be used for lifting a bottle cap.
I will not describe the technique as it shouldnīt be done anyway. In the case of the CD it might cause injuries, if not done properly.
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If it isnīt broken, it doesnīt have enough features yet.