Was trying to think of something that could be easily implemented and perhaps also add more crafting and resources to the game…so was thinking camouflage!
How it would work is something along these lines: Make it a dropped recipe could even be few different kinds for different terrain ie Grey for mountain areas, green/brown for tree lines and woods then yellow/green for grasslands well you get the idea.
The camouflage paint could be made from crushed stone, wood fiber, grass and so forth as for the netting that guess could be made from the cloth we get from animals? Could see this being very handy for hiding yourself when you need to log for the night or for hunting (animals or players), while this would not be practical for huge player made building for 1-2 room ones the netting could prove very useful?
Just a few rough ideas.