XX
thingiverse
I'm uploading a copy of this device now so I can get it printed out and be done with it, even though I no longer have the original maker to thank for creating it in the first place.
Download Model from thingiverse
With this file you will be able to print XX with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on XX.