Pyramid.
thingiverse
This is an invention I came up with during my downtime. It's actually my first creation of its kind, so please leave your honest feedback and rate it fairly.
Download Model from thingiverse
With this file you will be able to print Pyramid. 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 Pyramid..