LACK white stained oak effect, wall shelf, 110x26 cm - IKEA
EKET wall-mounted cube storage unit, red-brown, 35x35x35 cm - IKEA
Honeycomb shelves! All that's left to do is another sand, stain, and attach sawtooth hangers (and mount to the wall, of course!) : r/BeginnerWoodWorking
Amada Wooden Hexagon Floating Shelves Wall Mounted - Set of 6 Pine Wood Hexagon Shelves Display for Photos,Plants,Rustic Honeycomb Shelves for Living ...