I'm always on the looks out for the weird or unusual, especially when it comes to dice. I this it was way back at GenCon 1990, when it was still being held in Milwaukee WI (Yes, I am that old.) that I found round D6s (see picture below). I don't use them regularly, but once in a while I will bring them into the light and show them off.
In the same weird vein to these round D6s, someone developed D6s that have 12 sides (the 1 to 6 pips appear twice, i.e. DoubleSix dice) with the theory that a dice closer to a sphere rolls better than a cube.
And pushing the idea a little further, these same people came out with their TripleFour dice (1 to 4 pips appear three times each). So you get a more random result and if you drop them on the floor, there's a lot less risk of stabbing your foot on the ''freaking little caltrops''.
I've gotten myself set of both (see picture above). They are available in a variety of colors and finishes. C…