Once in a while I write "Frodo Lives" or "Do the wave for Boromir the Disco King" on the dividers we use in science when taking tests. I put Frodo Lives on a ring I made in shop class, too. Some people have noticed it on the dividers and have guessed it was me, but none of them are Tolkienists. Writing in Dwarven runes on your hand draws attention. I had one Tolkienist notice and was very happy.
