!! NOTE: Don't print the assembled version as this was roughly assembled using 3D modelling software and isn't perfect (angles aren't quite right and the meshes overlap at points). You're much better off printing the individual parts out and assembling them.

I've remeshed the model found here (https://moikaloop.gumroad.com/l/moika3d) as it has way too many faces (5-10mil vertices per part!) and I've reduced this down to ~70k per piece. It's still very high poly but hopefully won't crash or lag the crap out of your slicers!
This upload also functions as an alternative link if you don't want to give another random site your email address.

Model is based off this tantalising animation: https://www.youtube.com/watch?v=yahcmltC3ZA