Corner notch die
thingiverse
This one was fun to design. it's impractical and surely doesn't roll fair, the notches in the corner add up to the number for the side, since there are odd numbers on dice the one is a pretty traditional hole.
Download Model from thingiverse
With this file you will be able to print Corner notch die 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 Corner notch die.