Update to $5 measure stick

After using the measuring stick a few times, I have made two modifications to it.

1. I added another piece of wood under the bottom base piece, it is a little larger and thicker than the base. I found that it needed more weight as the whole thing moved slightly after some time at the wheel.

2. I added a piece of plastic (cut from the lid to a cottage cheese container) in the shape of a arrow to the arm nearest the pot. Using a sharpie, I colored it black so it is more visible.

Aside from that, I really like the measure stick!