May we suggest:
CJ Recht Bite Me Keychain Sterling Silver
Part of the Bite Me collection, here, the Bite Me heart appears on a sterling silver key chain with ball ends. The sterling heart is attached to the keychain with a gold-filled loop for contrast. A keychain is the perfect gift for anyone who really needs a Bite Me heart, but just can’t be seen wearing one everyday. Just twist one of the balls off, slide your keys on and replace the ball….(feel free to add your own joke here….)
Two versions are available – all sterling or a bronze heart on a sterling keychain. Your choice….