They've been at it for a while.

From Life magazine's 30 Dumb Inventions:

Cat-Mew Machine, 1963



"This mechanical cat can meow ten times a minute and the eyes light up each
time. The device for scaring rats and mice is powered by a two-watt motor."


Beating Breasts, 1963



"A pair of artificial breasts with a built-in heartbeat, an invention
from Japan intended as a sleeping aid for very young children."