I had tons of 4" squares my mom in law left me (well bil tossed em, and I took em).
I made a crown of thorns, or mariner's star...whatever they call it...has many names. I took white muslin, cut into 4" squares... then I sewed two squares together (one color/1 white)...right sides together..marked a diagonal line...sewed a scant 1/4" on each side of the line...cut in two on the diagonal line...tons of half square triangles. I made the star, then a trip around the world, a pinwheel quilt...I just started laying out the squares until I found a design I liked...made tons of different patterns. Some of squares not made into half sqs, I made into 9 patch quilts for grandsons...again adding a solid color to alternate with the colored squares.
carpenter's star
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