Get 24 points
The coin is slapped against the bottom of the bottle and flys into the bottle like a... bullet.
It is possible to borrow the bottle, the coin, and perform a signed version of Bullet. All of this is taught in detail by acclaimed master Justin Miller.
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Justin explains a number different ways to seemingly make make a coin go in a bottle when you have a borrowed coin or a borrowed bottle. He also has a scenario that uses a gimmick and goes over angles very well.
"Borrowing" the bottle and coin isn't really what you think it is. I mean, technically you do, but...
The effect itself it well thought out though, and the handling is great. It's also very visual, and therefore produces great reactions.
The only reason I dropped a star was the fact that it isn't as "spur of the moment impromptu" as I expected and I don't think it's practical for street performing: having a bulky bottle with you at all times, forcing a spectator to drink their beverage quickly to get a bottle, having to plant a bottle, needing an extra coin, etc.
I love it because it is impromptu and easy to do. The setup is about 2 seconds and can be done right in front of them. I do this trick almost every time someone wants to see a trick and a bottle is near!