Customize plain sheets of white mesh-backed floor tile with colorful accents. Design a pattern, pop out white tiles, and replace with colored ones of the same size and shape. Here, blue and black squares echo the wall paint and countertop. Similar to shown: American Olean 12-by-12-inch Sausalito Mosaics white porcelain tile, $2.70;
. For the accents, search overstock bins at tile showrooms; as little as $10 can buy enough for an entire floor.