Finishes:

Second-hand and broken wall tiles, road marking paint, Natural, water-based lime-wash (light & disinfectant).
 
Second Hand Tiles Lime wall White road paint    
 
Ceilings and Insulation:

Low Grade wool and lavender (wool filled bags between roof-sheet & reeds), waste polystyrene packaging, waste brown corrugated cardboard, invasive reeds from riverbeds.
 
corr cardboard Wool Bags      
 
Fittings:

Used car-filter (for energy saving compact fluorescent lampshade), second-hand steel windows and doors, prosopis pole sunscreens and burglar bars, recycled material light fittings, shutter board & reed furniture.
 
Window Lampshade Shutters Steel Windows