Related Clues:

• They have their ups and downs
• War memorials, e.g.
• Common park features
• Playground props
• Rodin created some
• Busts, maybe
• Pigeon perches, sometimes
• Goes back and forth
• Donatello's "David" et al.
• Centers of squares, maybe
• Playground items
• They also have their ups and downs
• Rodin works
• Sculptors' works
• Sculpted figures