Home-made D4

To fill some empty time today, I made myself a "brazil nut" d4 out of some pink birch and poplar dowel. It seems to be successful as a die, so I shall probably make some more. I've just eyeballed the proportions, and haven't employed any great precision in manufacture, but it seems to roll pretty randomly nevertheless.

It's about 18 x 30 mm. I wouldn't want to go any bigger than that, but it wouldn't hurt to be a bit smaller. That would make manufacturing them trickier though.

I tried out this design too, but it didn't roll as well — it had a tendency to end up lying on one of the curved sides (and thus not showing any of the pip faces), especially when rolled on a soft fabric surface.

Also, the pips are too small and indistinct for easy reading.