|You can make it dance if you want to...|
This large, dull, grey metal coin is plain apart from a number of seemingly random scratches on each side. When placed on it's edge and spun the image of a dancing skeleton appears. Once per day the coin can be spun to summon a skeleton with 3HD that lasts for one hour or until destroyed. After an hour the skeleton reverts to a coin, if destroyed the coin is lost forever.
There are a number of similar coins in circulation that summon different creatures and monsters, the image on each coin producing a dancing creature. Wizards are weird.