chalk roll to match chalkboard placemats

I used the same oil cloth that I used on the backs of the chalkboard placemats here, but choose different fabric for the inside and the velcro tab to match. There are three going to the same house and I wanted each to be different. This is only one of the varieties that I made. I am really excited to see how they like these and the chalkboards.

I had found numerous instructions for making these and they were for crayons and had 16 slots. I thought that was way too much for chalk. And I was only finding boxes of chalk at stores with these 6 colors. So, I again, came up with what I wanted stemmed from someone elses cool idea.