Here are some planted and out on the old deck. They'll be protected by the house a little, but also have sun / light as much as possible. The lids have a small hole in them. I'll leave them on until it warms up a little. There are drainage holes in the bottom.
Since the milk jugs had the indention in two sides, I cut up over the indention on those sides and sloped back down toward the bottom of the handle (also the 'hinge'). This also let me slip the top part over the bottom part a little before placing a piece of tape to keep it in place. This seems a little more stable than my try at making a lower cut through the indention.
So far it is just lettuce, chard, broccoli and nasturtiums. I'll be making the rounds to other sowers to see what they have planted.