Campaign of the Month: March 2016
Ptolus, City by the Spire
These triangular glass tokens have a value of 100 gp apiece. The attractive nature of mage coins is their magical property.
The last person to touch a particular coin can summon it into his hand with a simple mental command. This means a character need not carry a lot of money around with him; he can keep his mage coins safely tucked away in a secure vault somewhere, still perfectly accessible to him.
(Note that the coins cannot be sent back magically.)