Walmart brand cork boards should come in a 4-pack. They will be thin.
Glue 2 boards on top of each other so when you tack something it won't contact the wall.
Wrap the fabric like you would a present. Staple every fold, first making sure it's tight.
It should look like this.
I made two medium- sized boards but you can connect boards to make bigger, or cut to make smaller.
My finished product. Walmart brand should come with sticky squares to hang boards.