Bathroom accessories

Paper towel dispenser
Bottle holder with pump
Toilet brush holder
Towel holder
Toilet paper holder

Check in the scene settings that you have Displacement enabled
Displacement in Render Setup:
Corona: Performance tab – Displacement – Screen Size (px): 2

Corona 7 version
Materials used in the model:
CoronaLegacyMtl – requires CoronaRender version at least 1.5