Savings Box
Piggy Bank, Bank, Money Box
noun
ちょきんばこ
貯金 (ちょきん) Savings
貯金箱 (ちょきんばこ) Savings Box, Piggy Bank, Bank, Money Box
金庫 (きんこ) A Safe, Safe
A Piggy Bank is basically an anti choking ちょきん box 箱 ばこ because it prevents children from choking on the coins.