Not finding others in the workshop so far, I created a quick and easy mod containing new, lightweight blocks for the game.
Below are the block types I've added;
Lightweight Block - 0.5 mass (half the mass of the normal build block)
Super Lightweight Block - 0.25 mass
Ultra Lightweight Block - 0.1 mass
These do not replace any of the default blocks in the game, they just show up in the build inventory tab while in a workbench. Enjoy!
