2 years old.
Cow: "Mooooove over"
Sheep: "Naaaaaaa."
or
if you mess with the United States, there will be hell toupee."
or
Because there's no one else to wag it for him.
or
The leaning tower of Pizza.
or
A multiplication table.
or
Twenty. One to hold the bulb, two to turn the ladder, and 17 to be on the guest list.
or