主权项 |
1. An attachment mechanism comprising:
a bottle having a neck and an opening at one end of the neck; a screw cap configured to seal the open end of the bottle the screw cap having an entirely, substantially flat exterior surface; and a single piece of elastic cord having one end thereof directly, permanently and non-rotatably connected only from the top center of the substantially flat exterior surface of the screw cap and another end connected either to the bottle neck or an upper portion of the bottle. |