If you haven't ever tried a triangular pencils you're really missing out. The shape not only keeps the pencil from rolling but is also a more natural shape for a hand to grip. Most know the Faber-Castell Grip 2001 or many of the Japanese triangular pencils on the market but the triangular pencil has been around for much much longer.
The first triangular pencils existed in the form of American pencil maker Richard Best's patented Try-Rex. The Try-Rex isn't quite what you'd expect it to be--it's a triangular shape with slightly beveled edges. In its hey day almost all of the Richard Best pencils were made in his Try-Rex shape, including the iconic, very pink Futura.
Richard Best Pencil Company eventually merged with J.R Moon in Tennessee, where three version of the Try-Rex are still manufactured. There's a normal diameter version, a mini-jumbo and a jumbo. We recommend it for long-haul writing or if you're trying to re-invent your pencil grip.
Check out all of the original Richard Best pencils here.