I love these concrete planters by LAbC Design, they are like contemporary zen gardens!
Such a modern little design, they use geometric shapes and white pebbles to highlight the chosen plant, but also to create a patterned design within the concrete planter. What a cool little showcase piece for the coffee table or bench, and low maintenance too! LAbC Design also make some amazing furniture which combines concrete and wood in the same geometric fashion, well worth a look I promise!
Unfortunately they only ship within the USA, which is a shame for us Aussies, but lucky for any of our American readers!