Possible Clues:

• Umbrella shape, often
• Figure of many sides clubs in part of New Zealand name
• Shape with eight straight sides
• Figure commanding officer brought up tango-dancing
• MMA cage shape
• 'Meditation XVII' writer
• Perhaps general Luas procedure leads to shape of roadside display
• Shape seen at some crossings
• Dome of the Rock floor plan shape
• Goo can't be plastered over the figure