No 8 "Garden Tray" (2015) by Chen Chen and Kai Williams, from $5,000 at Chamber
Measuring 18 by 24 inches, this miniature desktop arrangement by Chen & Kai reimagines the traditional Japanese tray garden. A study of geometry and industrial materials, it incorporates stark, rectinlinear forms made from aluminum foam and resin-treated travertine alongside natural stone and a tiny dwarf bonsai.