This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
A coin soldered to some inexpensive ring, or a piece of brass cut from tubing, will make an interesting surprise coin for friends. The ring when placed on the middle finger with the coin in the palm makes the trick complete. Ask some one if he has ever seen such a coin, or say it is a very old one, as the date is almost worn away. He will try to pick it up, but will find it fast to the finger. - Contributed by Wm. Jenkins, New York City.