Catspaw, if you can give me a clue about dimensions, I might be able to make you a clay possum ocarina. I can't remember just offhand what makes them sound. Do they have a whistle aperture? If I lay my hands on a functional one, a possum one should be easy; I regularly make gargoyles and critters and rattles and such out of clay. (fired). How bout a possum kazoo? I bet I could do one of those. Did it have a tail at all? or was the tail curled around and the butt the soundhole? Want to send me a sketch? I'm serious.
Blessings,
Barbara