Headless Gourd Shaped Ukulele

This Soprano size ukulele is a 3 piece design:

 * Body 

 * Fretboard 

 * Bridge

It has a groove in the neck to accommodate a neck rod to stiffen it as most 3D printed plastic is too bendy under string tension. 

Use something like this for the in-neck rod:

  http://www.acpsales.com/.125-x-.325-Rectangular-Rod.html

Also it is meant to be fitted with simple friction tuners like this:

  http://www.amazon.com/gp/product/B00E3UA3JQ

You can hear a demo of it on Youtube https://youtu.be/MWWb5VRRV_g