My friend Dave has been getting into tabletop games. One day he mentioned how annoying it is to use four-sided dice: pyramids just don’t roll very well when you toss them across the table. He had an idea for an 8-sided die that has the numbers 1 through 4 repeated twice. After a cursory search through Amazon, it didn’t seem that any such thing already existed, so I spent an evening creating a 3D model for it in FreeCAD and printing a few out for him. (I later found some online, but making stuff yourself is still more fun! Plus, they use so little PLA that they’re virtually free.)
For extra fanciness, I used wood-infused PLA. After some sanding, they’re pretty satisfying to hold in your hand and roll. I’m sure they’re not even close to fair, but it was a fun project to give as a gift.
If you’d like to make some of your own, the model is available on Thingiverse.