We've had a great response to the engraved date medallion which allows you to select a date like a sobriety date and personalize the coin through engraving. (Which is included.) It's done so well we decided to create an option to have this coin made into a keychain. Our manufacturer Wendells Inc engraves your sobriety or anniversary date on the trunk of the tree. The back says This Day My New Life Began. Then they punch a hole in the top and put a nice gold tone ring on a short jump ring to make a nice sturdy keychain that has been personalized for you or your gift recipient.