shapes
thingiverse
These are random shapes that i made in tinkercad. I use them for holding circuits, but they can be used for anything. Instructions printed on a replicator 2.That is what I recommend for the pyramid. The other one can be printed on any 3d printer.
Download Model from thingiverse
With this file you will be able to print shapes 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 shapes.