I am right now limited to parts available in new Castle line and a few things (like the minifig parts and monkey) from some auctions on eBay and my old pirates. But the quality of the calliope is really bad.
You made me think of a bigger one. I want to use this character in a bigger MOC of mine that I am planning. But in this MOC he will not be a beggar but a comedian with a cart that itself is a big calliope. He will probably get an attractive young assistant but the monkey will stay - I like it.