So I would like to have a large-ish playground for the budgies (and maybe the Quaker when the budgies are in their cages) but I don't have a lot of money to spend. Has anyone made their own?? I saw some online made with drying racks with ladders and toys, and they looked cool. I have found that Benji likes to explore, and I want something that will entertain him enough that he won't feel the need to wander around on the floor all the time. Thanks!