by moodini » Dec 17th, '06, 00:01
The more gradual the bottle tapers toward the mouth the better....many pop bottles for example have a stubby neck and when you shake it, their is not gaurnatee the coin will hit the opening of the bottle (hope that makes sense) Other bottles.....Perrier water bottles for example, the taper all the way to the opening, so no matter how you shake the bottle, the coing will head straight toward the opening.......let me know if this makes sense and helps at all.....PM me if you wish!