Guitar Wall Hanger

NB: Print it horizontally with support, instead of upright!! 

I made this entirely in Fusion 360 with two variants. The first model is straight horizontal, and the second one is angled to fit uneaven headstocks like Fender Telecaster and Stratocasters. If you have a left-hand guitar, you can mirror on Y-axis in the slicer by right clicing the object.

Prusa Slicer Suggestions
Material: PETG
Layer height: 0.18 
Infill: 50% Gyroid (Print Settings - Infill)
Shell: Six or 10 layers (Print Settings - Layers and Perimiters)
Infill/perimeter overlap: 55% (Print Settings - Advanced)
Extrusion width perimiter: 0.5 (Print Settings - Advanced)

Print horizontally with Brim and Support for extra rigidity.