This is the text for the one ring from The Lord of the Rings. Follow the post-printing instructions to make a ring with text that is normally invisible but glows when exposed to UV light. (The one in the books used fire, but I don't have a volcano... or magic. This one just melts and burns in fire.) You'll also need polycaprolactone (PCL) for this build. PCL is available in pellet form from several online stores. I get mine from MCM Elextronics under the brand Polymold.

If you have a dual extruder you may want to try this one instead http://www.thingiverse.com/thing:1343185.