BrylaneHome offers its BrylaneHome Extra Long Tub Mat With River Stones Design in several colors (Turquoise pictured) for $14.99. Coupon code "BHWCONFIRM" cuts it to $11.24. With $5.99 for shipping, that's $19 off list and the lowest price we could find. It measures 18" x 36" and can be trimmed to fit.