The basics: 1. fabric strip 4" x 24" 2. sew right sides together, 1/4" seam allowance, ~2" opening on each end 3. turn right side out - can use loop turner or kaula/safety pin 4. secure to opposite end to turn 5. insert 6" double fold elastic 7. sew elastic closed - overlap 1/4" 8. sew 4" ends together, 1/4" seam allowance 9. finish long seam, fold opening under 1/4", edge stitch