Hiya,
I did this with a large bin of orphans I had amassed.I first sorted everything and put like with like.The I started a medallion and worked outward in sections.I added strips and squares to get about the same size.It helps to have a big floor to work on and your tape measure gets a workout.I finished mine with a medium width solid border and called it done.Let me know if I can help...
Shelly
Ft.Lupton,CO