So I was looking at tooth brush case, real pencil cases (too short) and my wife came up with these “Smencil’s” that they sell at her school. Well it turns out the Apple Pencil fits perfectly in the case and you’re able to add a little piece of foam at the bottom to protect the point if needed be.
I guess if you really wanted to make a custom fit you could cut about a 1/4″ off the end of the tube to accommodate the length of the Apple Pencil.
I purchased a pack of 5 from Amazon for roughly $7 bucks. What a bargain.