Like, buildings other people have scanned? You can export your scans to the log and then convert them into mini-mods, so it's technically possible but I don't know if anyone's actually ever done that.

I wrote a tool (in 2017, I have no idea if it still works) that helps with this, which is on the official forums here: https://community.playstarbound.com/threads/modules-in-a-box-custom-blueprint-extractor.138680/