Vertical garden using IKEA's KROKEN cutlery stands
IKEA's KROKEN cutlery stands are perfect flower pots. The size is good, the look acceptable, and they have excellent draining. Also, they cost less than 2€ a piece.
What's better, using some steel wire, they can be chained into these vertical garden contraptions. I think this'll look real nice once the greens grow a bit and make it all more green than metal.