This is a string quilt.
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One quick way to do these blocks is using pages from an old telephone book. Cut the page to any size, leaving 1/4" extra all the way around. Then use that to lay your strips on. I prefer starting with the middle strip, which is always the same color (which makes a nice secondary pattern). The paper is sturdy, but it tears away very easily when you're finished. The sky's the limit with string blocks... there are so many ways you can lay them.