These are carbon fiber reinforced 3D printed PLA 4/4 Violin / Fiddle, designed by David Perry via OpenFabPDX.com
4-strings or 5-string option (includes D'Addario Prelude, medium tension, 4 or 5-strings).
Grover, GraphTech or Wittner Planetary tuner options.
Rosewood chin rest, or 30% walnut PLA chin rest.
Fusion 360 generative Revision 4 bridge... each Fiddle includes a secondary modular pegbox, tailpiece and bridge, so the prices vary based on which tuners you choose.
Two carbon fiber structural connecting rods and dovetailed joinery, make it easy to switch out modular parts, nothing is glued, nor needs to be glued together permanently.
The walnut instrument is David's third revision, and uses brass inserts in place of the dovetail joinery & is also easy to modulate parts.
The bright yellow and white instrument, I'm calling the "honey dipper" & is in tune and ready to play. The brown violin was made using 30% walnut PLA.