Crochet Rug Technique - crochet your mesh background then add rows of double crochet to the top. The different design possibilities of this technique are absolutely endless.-Could also crochet the mesh background as a base for a rag rug!
See the diagonal design when they move the last number to the next row, then then and start over with 1 at the top. Sewing each row vertical. Row one then gets sewn to row 2 vertical until you get the size quilt you wanted.