This Christmas placemat was in response to a request for a placemat  that is solid (not lacy), done in #10 crochet cotton, and for the season.  I used the start of a free log cabin afghan design , only instead of #4 yarn, I used three strands of #10 Crochet cotton, with a size) steel hook.   I added a dark green border in the same style using one half the width of the blocks.   The design, measuring 21 inches wide, and 15 inches tall, is completely  done in double crochet.  This placemat weighs 200 grams, the amount of yarn in four, 175 yard packs of #10 cotton.