Oya Aroma Stone DiffuserThe offcuts generated in the manufacturing process of Oya Incense Set's incense holder and Oya stone coasters by NAGAE+ are mostly limited to use as aggregate in concrete. We have upcycled these offcuts into aroma diffusers, utilizing the porous structure of Oya stone. The original container is made entirely from appropriately processed recycled fluorescent light glass, which, together with the Oya stone, features a subtle green hue. The lid is cast