Urba planters (set of Blue. Enter Promo code "Christmas" to recieve off entire order.
DIY: Cement Planters & Orbs - tutorials on how to make these garden pieces + how she mixed the cement mixture. With this info, you can make lots of garden art - via Remodelaholic
Some cement planters could be cool and bring in the colors from the ceiling supports.
34 Cool and Modern DIY Concrete Projects - geometric concrete bookend