Star decoration
cults3d
You could hang these decorations on the tree. It is resizable. You need to print 2 of the "star" stl then glue them together.
Download Model from cults3d
With this file you will be able to print Star decoration 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 Star decoration.