From Two Inches of Felt
STL (3D Model) – $5.00 USD
Includes eight different variations of one to four fir trees.
Easily printed on an FDM printer with no supports and 10% infill.
I usually print at 0.24 layer height and 1-2 line width for walls.
The scale is suitable for 6mm and 12mm as is, could be scaled to 2mm and 15mm.