As you study photographs of decorative posts, note how the geometry of the cuts is often created using simple 45 or 30-degree angles. Common circular saws can be set to create these angles. If you ...

If you have access to a table saw, you can achieve the same results. I suggest you cut the 8-foot 4×4 into four 2-foot long pieces. You can now fashion 8 different fence post designs if you want.