Coin of Waukeen
A magical coin that grants luck
Legend has it that Waukeen, while in human guise, scatters these magical coins across the Realms, willing them to end up in the hands of those who are most deserving.
They show her face on one side, but what is on the other is a mystery.
According to legend, not only does the coin give the owner luck, it also may be flipped as a fortune telling device. If her face shows, the answer to your question is positive, or affirmative. If the other side shows, it is negative.