He must really like ducks

My son received a puzzle a few weeks ago.  It's a simple puzzle, shaped like a barn with farm animals and a farmer for pieces.  It has a goat, a horse, a chicken, a sheep, a pig, a farmer and a duck.  The duck is clearly my son's favorite.  He beelines for it, and usually holds it up to me, saying "Quack, quack, quack."  Actually, his annunciation isn't that great yet, so it sounds more like, "Wack, wack, wack."  

He's been playing with the duck puzzle piece all on its own a lot lately.  In fact, he likes to hold and play with it while he nurses.  Sigh.  I mean, can't he just cuddle a stuffed toy like other kids?  At least that wouldn't scratch my neck and chest.  

This morning it was obvious that he is becoming a bit too attached to the duck.  He woke up in the middle of the night, and, instead of crying to let me know he was awake, he sounded wide awake when he said, "Wack, wack, wack."  Really kid?  Give it a rest.  We'll play with the duck in the morning.