Simple guitar shaped Pen/Pencil holder
Can be printed without supports (the pen hole is easily printed without any support even when printed flat)
About an hour to print in 0.2mm
Support: None
Exterior Walls: 2/3
Top shell: 4
Could try to Iron if the top doesn't come as smooth
Infill: 15% gyroid or 15% cubic support worked for me 
Size is about 100mm so it's possible to be printed even on an A1 Mini!

Check the STL files for the model with the circle caving inside like in the photo, the main a1 profile uses the multicolor with outer buldging circle for an easier multicolor print.