Nine Patch Uneven Nine Patch
The Uneven Nine Patch style of quilt block is so named because not all of the nine individual patches are the same size as is the case in a regular nine patch quilt block. This style of quilt block is often used in 10" quilt block to make the math easier, but you will find this construction method in many other quilt blocks as well.

Butterfly Star

Free Quilt Block Pattern

The Butterfly Star quilt block is made of easy patches, but can be a test of the accuracy of your quarter-inch seam allowance because it contains a small block (comprised of small patches) inside a larger block. However, none of the individual units are difficult to construct.

This block is sewn as a four patch to create the centre of the block, and then constructed as a nine patch for the remainder. It contains the commonly used patches flying geese as well as half square triangles.