Check out the Boxymuse, a free music box inspired ensemble for Native Instruments Reaktor
“BOXYMUSE is a deluxe music box made in France (Hand-made calligraphy). Hear the sweet sound of harmonics and the clatter of mechanical. This instrument, very cinematic, offers three octaves. Do not forget to turn the modulation wheel to forward mechanics before to do waltzing dancers.”
It sounds pretty flippin’ choice.
(Modules are programmed with REAKTOR 5.9.2 by Native Instruments and they are compatible AU, VST and RTAS, for MAC and PC. So, you need the FULL version of Reaktor 5.9.2 for use them: www.native-instruments.com/reaktor5.9.2)