Glass Panes and Enclosures (GPE)
Disclaimer: 70% of the modeling work and texturing and config writing was done by Nazari1382. All I did was change/add some parts and configs. Any possible additions in the future would still follow Nazari1382's style and use his textures.
I'm personally using this mod everyday for various purposes and goals. It provides a very good part collection for extraordinary contraptions, sci-fi 60's style space stations, and ground bases. One can even use for underwater bases on Eve or Laythe or even Kerbin! All in all, it is a perfect part selection for most crazy purposes.