One of the major reasons we moved into making handmade dice was to be able to add cool stuff inside the d20. Obviously we went with a skull as our first product cause skulls are cool.
These are sharp edged, handmade dice with an inclusion so small imperfections are possible and the balance is not 100% perfect like any dice with an inclusion.
Obviously as a handmade product supplies are super limited. If you'd like to get a full set of our handmade dice each month (at a discount) check out our handmade dice subscription.