Containers can come from anywhere, not just your local garden center. Head out and get inspired with the selections in your local thrift stores and garage sales, and use your extra cash for more plants instead.
Yes, some of it is really easy. Some is more difficult. Eventually it gives up and lets the drill go through.
I haven't drilled the sea shell one yet. Think that one is going to be a real challenge.
Great containers you found at the estate sale. Some of them really look like old ones. I have a very old pot that belonged to my mother when I was small and I just can't get myself to plant anything in it. Now I know just what I'm going to do with an old light fixture I've had laying around here for several years.