Walmart offers the Cap Barbell 12-Piece Puzzle Equipment Mat, model no. MT-1112AZ, for $6.49. (With orders of $25 or more, Amazon charges the same for Prime members.) Choose in-store pickup to avoid the $4.97 shipping fee. That's the lowest price we could find by $16. Each piece measures 12" x 12" x 1/2" and is mold and mildew resistant.