Anna, your containers look great!
I like this thread. The problem I have is wind. Anything has to be anchored down somehow or the wind will topple them. The same problem with plants that have a high profile. I really haven't ever devised a satisfactory method of giving a potted vine something to grow on. That's compounded on plants that have to be indoors during the winter months. My latest is a more permanent fence set high enough the container will sit under the wire and grow up the support. Next fall, all the entwined growth will have to be chopped loose before the container can be moved inside. Don't know how that will work for some of the vines. At least the support will be there next spring - if the plants are!