The Saltillo Tile booth at the IDS had many, many fabulous tile options, but I hold a soft spot for the 1" diameter penny rounds that I spotted:
Penny rounds were featured in Domino Magazine as a kitchen backsplash:
Recently, Anna at doorsixteen used black penny rounds to tile her bathroom floor:
Penny Rounds are available in more than just black & white. As featured over at Apartment Therapy:
Or how about metallic as backsplash in a gourmet kitchen? These available through Instile:
CopperMost penny rounds are available in 12"x 12" sheets, so to cover a kitchen backsplash that measures 12 square feet, you'd only need to purchase 12 units of tile. A small investment for a BIG impact!!
And my personal favourite, this glazed porcelain mosaic, available through Mosaic Tile Supplies for $9.95 USD per sheet: