OK, it looks like something a mafioso might wear – or something your family planning adviser might suggest – but be not afraid! Allow the Doorknocker Company to introduce this Mormon gadget: "Knocking doors all day makes for sore knuckles. Many missionaries will tell you they carried a stone, golf ball or coin to knock doors. But the Missionary DoorKnocker helps to stop the long months of knuckle pounding."

For as little as $6, you can own your very own DoorKnocker, and apparently you can even make it a family tradition and pass it on to your kids when they too become Mormon missionaries. DoorKnockers come in Brass or Silver Aluminum along with a velvet carrying pouch.