These large dice are 30mm on each side.
While they can be used for any of the normal purposes, I designed them to help teach my kid his addition facts. As a result, in addition to the standard one through six pips on a single die, I have added some other variants.
I don't have a fancy multi-materal printer, so I just color the pips with a sharpie marker.
The author marked this model as their own original creation.