To be Beach Cheap, use everything! This old toy bucket had a crack in the bottom. So now it has been resurrected as a brocolli planter.
A little spray paint makes an old rusted planter look like new.
I learned that if I put some hanging pots on the fence, out of toddler-reach, I would have plenty of pretty flowers to look at.
And I suggest getting free pickle buckets from your local fast food restaurant. They just throw them away. Drill some holes in the bottom, and they make great planters. I have a mulberry tree in one, sweet potatoes in another.