Working on a rendering for a client that needs to have a more ‘handmade’ look, I started out with using V-Ray’s textures to make procedural masks. For example the curvature texture can be used to make edges have different look to them (second in the image). But I wanted a bit more control, so unwrapped the item in Rhino, then rendered out an AO and curvature pass in Modo, and applied some smart materials in Substance. That gave it this look:
I noticed though that in order to get the OBJ in modo, I need to copy it to Rhino 5 and export it from there, otherwise I got holes in the object.