Do not disturb signs
thingiverse
These simple signs or for hanging on your door knob in an effort to deter people from entering a room. Use your slicer to pause at height and change filament to do a two color sign.
Download Model from thingiverse
With this file you will be able to print Do not disturb signs with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Do not disturb signs.