Such simple decorations are very easy to draw in 3D CAD software. They can serve as simple but beautiful decorations adding to the beauty of furniture pieces, architectural stone ornaments, and the like. You can also use them to fill surfaces, place them in the circle center, arrange them around the circumference of a circle, i.e., make circle borders out of them…
The 12-pointed star in Christianity and Judaism has symbolic value, so this might be another good reason to use or not to use these simple 3D models as decoration.