Virtually any container that you can cut or punch drainage holes into can be used for vegetable gardening. Styrofoam ice chests, livestock watering troughs or recycled 5-gallon paint buckets can work ...
I have great respect for DIYers (do-it-yourselfers). Personally, I prefer the HSE approach (hire someone else), but I must admit that when I see all these books and magazines at the hardware stores ...