Try to think at it from a totally different angle. If you were to produce something from the cage vanish, it will be amazing for the audience, but they'll start comparing you to other magicians who have done it before. It's almost as redundant as a cage vanish in general, not that it isn't amazing to a lay audience anymore, but they've seen it in some shape or form and they'll be thinking about "what was that magician we saw at the theme park that did that, what was the magicians we saw on the cruise that did something similar but he produced a girl, didn't that one guy we saw produce a macaw with his?, etc. etc.". I'm not saying don't use it, it's still puzzling, I still use mine all the time. But think if it not as the ending of the routine. There is stuff more powerful than a cage vanish that can be used as a "kicker", encore, or an even more powerful ending than just tossing the cloth and bowing. You could use the cloth, if big enough, for a costume change with an assistant appearance or something, that's a lame example, but you get the idea...