Here is an update on the Cat/Glider tower. Behind the nesting box is a place for treats. I still plan on putting in some braces to make it wobble less. I was able to fix the tallest part from wobbling really bad. my brother in law worked at Odells furniture, he said I should put in a double threaded screw to hold the two pieces closer to together. Well it worked great.
Fred told us that his gliders kept pulling off the leaves from the fake foliage in their cage and then putting it in their nesting box. Then we got some too to put into our gliders cage. Apparently the gliders still a natural instinct to line their nest with leaves.
Fred also told us that his gliders really liked barrel of monkeys. We read that they did in a book but didn't really think they would until Fred told us first hand.