At the moment Clover would be saying "Dont cry Mama"

Penny, "Give us a kiss, oh and whatever that is that you are eating" She is such a piggie

Theodore, "Throw the ball already" "Cant walk gotta run, Run, Ruuuuuunnnnnnnnnnnnn" Mr Hyperactive himself
Edit (I have not seen Theo walk since he was a pup, he has to run everywhere)

Elvis, "Keep on swimming, Keep on swimming"
He has found out that swimming is GREAT and wont come out of the water when we are at the park silly baby.