duckpin

[duhk-pin] /ˈdʌkˌpɪn/
noun
1.
Bowling. a short pin of relatively large diameter, used in a game resembling tenpins, and bowled at with small balls.
2.
duckpins, (used with a singular verb) the game played with such pins.
Origin
1905-10; so called from the pin's resemblance to the shape of a duck