decorated knob protruding from seal, allowing it to be strung on a cord

(Tw) Papua New Guinea (abbr. for 巴布亞紐幾內亞|巴布亚纽几内亚[Ba1 bu4 ya4 Niu3 Ji1 nei4 ya4])

hub (e.g. of traffic network); hinge; pivot; fulcrum

Australia and New Zealand

organ stop (button activating a row of pipes)

Chișinău (aka Kishinev), capital of Moldova (Tw)

traffic hub