I've sewn pieces together into pairs, and then joined those together until...
I have a piece big enough to sew to one side of the white fabric.
And I keep adding pieces
Until I get something the right size.
Then I trim it down to about 16" square
This is another block from the "Missing U" quilt from Sunday Morning Quilts.
I am looking forward to making more of these "Missing U" blocks. My little scrap bins are ready and waiting.