RIPO

Product: a tea tray and coasters with replacable red and green tea top
Medium: walnut, cork and tea 
Finish: hand-oiled
Dimension:  D 380 x  H 45 mm (tea tray)   D 75 x H 16.5 mm (coaster)

It is Inspired by an old Chinese custom, Winding stream party (chinese: 曲水流觞),  where The participants wait by a winding stream and compose poems before their cups full of rice wine float down to reach them. (from
Wikipedia). We simply the flowing water into a few circles and use cork coasters to replace floating blocks.