A stone's throw-rug. There's something grounding about the shape and color of stones, and what better place for this element than beneath one's feet.
The pebble rug is a geometric take on the river-rock muse, composed as it is of varied sizes of perfectly round circles (as opposed to the oblong shapes found in similar rugs by, say, Angela Adams).
What makes this rug so distinctive is the presence of negative space between the circles - a handy feature to let a really nice wood floor show through, and keep the visual effect lighter than the rocks it was inspired by.
Available in three sizes, 4'x6'-8'x10'; $348-$698.