Thanks, ya'll! I did get carried away by getting such a huge log, but when I saw it, I knew I had to have it. My Dad said the last Catalpa log he used lasted 20 years. I figure with these plants not needing much watering that I can make it last even longer. I'm going to slide some sort of concrete tiles up under it to keep the weeds out from around it and prevent moisture on the log.
I didn't put Silver King in there unless it's one of the NOIDS. That is Carmen. I like her so much, I just had to stick her in there. She's about to be a mother so I gave her a little extra room. However, her babies may be put up for adoption if she puts out too many.
