Free waterfall rug mug knitting pattern. You can pin the pattern to your pinterest board for later. You can save the pattern to your ravelry queue. *k1, p1*, k1 row 5: *k1, yo x2, p1, yo x2*, k1 row 6: Continue working in seed stitch pattern dropping the yarn overs. A mug rug is a quilted mat that is bigger than a coaster, and smaller than a placemat. Usually between a 4” x 7” and a 8” x 12” (metric: 10x 17,5cm to 20x 30cm) this mat is perfectly sized to accommodate a hot cup and a sweet treat such as a cookie, a cake, or a croissant. Also called a mug mat or snack mat, these mini mats are usually.