Of course it's okay to share! The decals idea is very interesting. I haven't had the chance to work with object space normals before so I don't know much about it, is it the same as baking vertex normals into a texture map?
Neato! You could also crop out those deetz to get decals from them. Chiming in cause I had a similar idea but different workflow to use toolbag baker better and more efficiently. 1, make basemesh as detailed as I want my lowpoly to be. Unwrap the basemesh (with supporting geometry and all), and bake object space normals in…