I think a good starting point is to get STLs people can use to print their own other halves on 3D printers. Once you have the models, they can be customized, remixed, used as a base for other half keyboard development.

Releasing the OH 3D model (preferably in the widely used STL format) could be a nice opportunity for Jolla to get a lot of good will in the 3D printing community. Or alternatively we'll have to hack one together ourselves.

Example:

Han Solo in carbonite 3D printed phone cover