My son was in the Air Force and now works at Cape Canaveral as a civilian. I want to make him a quilt. I want to have it reflect the air force and his current job. I have this panel that I would like to use. Once I cut out the blocks to use, they will be 7 1/2 X 7 1/2. Any suggestions on how to make these into 12 1/2 X 12 1/2 size? That is the size I need for the quilt I want to do. I will also have some other blocks too.