Not all magic items that exist in the word are glamorous or all powerful. Sometimes, a magic item can take on the visage of something ordinary that fits a very particular niche in society. One such example of this sort of magic item is the Coin of the Beggar.
This small coin is not really a coin. It is a simple disc of some unknown material that has the ability to temporarily take on the characteristics of any coin the owner has seen. The more commonly seen the coin the better the chance of pulling off the illusion.
Because the coin is singular in nature most adventurers who chance upon this item either discard it casually or spend it before it fully attunes to them. This occurs because the default appearance of the coin is the least valuable coin possessed by the previous owner, often a coin of worn copper or even a wooden slug.
Care needs to be taken when using this coin after it has fully attuned to the owner, a process which takes 2 to 8 days. Once attuned the coin’s secondary power becomes active. This power causes the coin to teleport itself to the owner after 1 to 4 hours have passed after being spent or otherwise changing hands. This effect only ends upon the owner's death.
Because of the secondary power the coin is best used to copy the most common coin in circulation lest its disappearance be noticed. For example, if the owner passes it off as platinum and no one in town ever sees a platinum coin, its disappearance hours later will certainly be noticed. Passing it off as a silver coin, when the shopkeeper takes in hundreds of silver coins a day, such a disappearance will be excused as a math error.
Major Power: The Coin of the Beggar can take on the properties of any coin the owner is familiar with. As such it will detect perfectly as the coin being impersonated. The one exception is if the item is used to represent a very specific coin or art item that is similar in appearance to a coin. In such cases the other party may make an opposed knowledge roll based upon their knowledge of the item. It will default to the least valuable coin type known when not actively being used. This power becomes active after being inspected by the owner for five minutes.
Minor Power: After a 2 to 8 day attunement process the Coin of the Beggar activates its secondary power, the ability to return to its owner after leaving their possession. This power activates automatically 1 to 4 hours after leaving their possession.