This is a tale of two paints.
This project is simple enough: all you need is a glass container and chalkboard paint.
Now, the question is -- what kind?
This was originally an accident. I went to a small crafts store originally, and all they had was Martha Stewart's green chalkboard acrylic paint (when I was looking for black chalkboard spraypaint).
So, first things first: Green chalkboard paint.
I then stopped by my local Michael's and got black chalkboard paint.
Easiest, the winner is the black spraypaint. Acrylic paint is less messy, but it's way more work.