If you're looking for an outdoor project that's a bit off the beaten path, a pebble mosaic will give your yard, garden or walkway a unique and unexpected focal point. Though the materials to build it are pretty basic — flat pebbles or cobbles from a stone yard or ordered online; concrete mix, gravel and stone dust for the base — your design can be anything but. You can make this mosaic in a weekend.
You can get the instructions from Here.