These are moderately common. Pointed ends (without numbers) and skinny triangles that approximate a cylinder (with numbers) roll nicely and, allow unusual fac

These are moderately common. Pointed ends (without numbers) and skinny triangles that approximate a cylinder (with numbers) roll nicely and, allow unusual face counts. But I've actually seen it most often for the humble d4 which has a reputation, in some circles, for not rolling great in its usual tetrahedral form.