I recently won a copy of A Flock of Feathered Stars–the timing felt like a bit of synchronicity. This quilt block, which is number 7 in the book, is Aunt Betty's Star.
While not microscopic–the author's suggestion for day 14–this block is quite small. Here it is on the design wall with some of my other feathers to give you an idea of the scale of things.
The patterns in the book are made using paper foundation piecing. 19 individual units are first pieced and then puzzled together to form the 12 inch block. The foundation piecing technique helps the quilter maintain all the points on those triangular "feathers" in the block.
The book contains foundation patterns for sixteen 12-inch blocks and one 24-inch block. I will likely be making more of these as part of this #365 project as well.