When I extended my sline module (the OpenScad module I used for generating the spring integrated in my flexible battery holder) to allow for skewed "snake lines", I was looking for a simple example to illustrate and test my module. That's when I thought of the treble clef (aka "violin key") as being a perfect example of such a snake line... I liked what came out of my little exercise. As may be someone else might be interested in it as well, I thought, why not publish it here on thingiverse... ? For those interested in the implementation, have look at the SCAD file. If you just want to print the clef, two STL files are provided: one for printing in normal position and one for printing the clef upside down (to get a flat and shiny top level for the finished object). Update 2014-04-05: I have now also uploaded two smaller versions with lengths 100mm and 65mm (the full length version being 185mm long).I printed this object from 3mm ABS on my DIY box-frame Prusa i3, using a 0.40mm nozzle with 0.25mm layer height and 0.56mm extrusion width. I always print on a clear mirror without Kapton tape, but thoroughly cleaned with acetone and double concentrated lemon juice