I have 2 1 gallon buckets with beans (these will need to be re-potted eventually if they grow), a 3 gallon bucket with zucchini and 5 gallon buckets with white onions, yellow squash, and sugar snap peas. Also there is a small ceramic pot I found in my stuff from when I had my gallbladder out, and I put some wildflower seeds in that one.
I have no idea what will or will not grow, but I used good drainage and soil (damn that's expensive!) and they have full sun and I'll water a lot - so we shall see.
I still want to get one or two more buckets and a tomato plant and a dwarf eggplant. I can't do those from seed because it's too late, but I can get a small plant from a garden center and try that out.