The first one, the Squirrel is saying, "Excuse me have you seen my nuts?" ;D
The second one is saying, "You have cold nips but I like you" :o
The third is saying, "I was just looking to see what was for breakfast" :P
The fourth is saying, "I ain't goin on Dads trampoline again" :o
The fifth one is saying, "I'm having a cat nip OK?" :P
Finally, "Who pinched the piano?" 8)