Clever idea: planters from pavers. have you priced large planters lately? i'm picturing a mosaic or pretty stain on these.you could use the mosaic tiles from lowes or homedepot.
Black raised garden beds Modern potager - Finalist in Best Edible Garden Category of the 2014 Considered Design Awards, Gardenista
Best Edible Garden (Tied): Judy Bown (Gardenista: Sourcebook for Outdoor Living)