4 Fat Quarters
Step 1: Trim up your fat quarters so they are all the same size, I cut mine to be 17" x 20".
You should end up with 10 strips from each fat quarter, so 40 total.
So fold over your right most pair onto it's neighbor, right sides together. Repeat so you end up with five pair on each row. Sew them together on the right hand side.
Iron them open like before. Lay them out and repeat the steps until completed.
Fold the top row down onto the bottom row so that they are right sides together. Pin the one side together every few strips and sew it with a 1/4" seam. Iron the seam open.