This is a super trick, easy to use for showing a penetration of a half dollar into a solid glass
bottle. I put my initials on both sides of the half dollar that goes in the load area. I use the
second half dollar and have my initials on one side and the spectator,s on the other. When I do the
trick, I point out the date because both of my half dollars are the same year. When I pour the half
dollar out of the bottle I switch it for the half that is initialed by myself and the spectator and
hand it out. It makes a great souvenir for the spectator.