noun
A thing to play with; can be literal (a toy) or figurative (someone treated as a plaything).
子供は弄び物を手放さなかった。
The child wouldn't let go of the toy.
彼は彼女を単なる弄び物として扱った。
He treated her as a mere plaything.
Common word for 'toy'; 弄び物 is more literary and can carry a figurative, negative nuance.
Compound of 弄び (もてあそび, 'playing with') + 物 (もの, 'thing'). The exact historical derivation is uncertain.