I'm not sure if you're up to making more bricks, but I would really love some extra variants from your "bolt" brick in the Minute pack.
Things like wall and ceiling variants, and other types like bolt-nuts and screw heads.
Maybe even make a chance on plant where the bolt is slightly raised out of the surface in the same way those books work?
Might be a bit much for bolt-head bricks, but I could really use them. I've tried to make them myself to no success...
I have went way past my productivity quota for the year.
However,
Random raised out might indeed be overkill - books have been excusable specifically due to the amount of variations, but I don't dislike the other ideas, and plus raised out could just be individual bricks. It's not like it needs a lot of variations.
I'll probably make one or two in the next few years.