Here's another craft mat. Originally I made mine for spinning because that is a super messy hobby, with fibre and vegetable matter going everywhere. But I realized a craft mat would be handy in a lot of crafting situations - when knitting with hairy yarn, finishing a knitting or crochet project with lots of ends to trim, or embroidery with all those errant bits of floss.
I made this craft mat for my friend with the squares I had left from the Fandango charm pack. The back is a deep brown she had left-over from a project. I finished it with white thread, chosen because I didn't have any co-ordinating thread and the fancy stitch actually looks really nice on the dark fabric.