This quilt is known as a strip quilt. It is made by sewing strips (or strings!) of fabric onto a stabilizing base. The strips can be of any width desired, and can be uneven in width. The more unappealing the contrast, the better I say! It just makes it all the more crazy and wonderful.
If you leave a diagonal line going through the center of the block, it works like sashing! These were blocks I swapped with members of my Quiltsy Team on Etsy years ago.
You can even make small things out of strip piecing, like this mug rug. Getting the right colors is a little trickier with a smaller piece, sometimes it's better to be a little more coordinated.
I've got a couple big bins full of strips waiting to pieced into some fun projects, so I'd better get busy on them. They breed, I think. If I turn my back I may have 3 bins before I know it! Time to put all those scraps to use for sure!