Designed using Fusion 360, and printed in PLA on an Ultimaker 3 Extended at .1mm. Print "Spring.stl" and "Back Enclosed.stl" at 100% infill, the remaining parts at 20% infill. I purchased 3/8" (9.525 mm) white ribbon and heat transfer paper for the messages, however, I wrote a couple of the ribbons by hand using an indelible ink pen. I used cyanoacrylate glue to attach the ribbon to both "Handle.stl" and "Spool.stl". The location of the ribbon on "Spool.stl" was in the 7 o'clock position.