Quote:
Because it is an inexpensive giveaway, and it makes the kids day. Think of it as good will advertising. The kid is going to remember the show....you still remember years later don't you?

Clarification of
Magician's coin:
Typically a
Magician's coin is used by the magician for an illusion. They normally do not give them away b/c the coin is a reusable prop they use to repeat the illusion. These half dollar magician coins used to run about $25.00 in the 70s, but typically can be had for around $10.00 nowadays.
To check to see if the magician, for some reason, did give away his prop to you, drop the coin onto a table top. If it gives a dull thud,, instead of a ring like a normal coin, then its been hollowed out and should be able to be separated.
Typically these coins are made using two different
Kennedy halves. Half dollar "A" has its REV side hollowed out leaving the coin's edge raised. Coin B has its REV preserved although made thin and the edge trimmed so it can snap into place in the other modified half. There will be an almost invisible seam running around the inside rim on one side of a
Magician's coin.
Either a large British penny or a Mexican Peso is made the same size as the modified REV from the half. These two pieces are soldered together with their designs facing outward.
The REV piece can be snapped inside the OBV piece to make the coin look like a normal
Kennedy half and conceal the foreign coin's design.
In the following pic, the left shows the hollowed out inside of a
Kennedy half.
The right side shows the REV piece with the Mexican Peso showing.

The prop is most popularly know for the "Scotch and Soda" trick (google it).
Own many, had one since the 70s. Used them many times just for fun ... I don't drink...unless its straight Pepsi