Name: Paul Utah (Zone 5b) Grandchildren are my greatest joy.
I visited Cactus and Tropicals Nursery in Salt lake City... took some pictures of containers that I hope you enjoy as much as I did seeing them and taking the pictures.
GG5: here's where I think those bonzai pots, wide and shallow would work for you in that you don't need as much dirt and the edge of pot is there for you (i mean for your semps).