Tulips on an organ. Edit: accidentally a letter.
A collie-flower!
Will the defendant please rise.
Because they make up an awful lot of stuff. EDIT: Because I forgot about neutrinos.
Because it was Stalin! (Sorry. Communist jokes aren't funny unless every gets them.)
A flat minor
She sings with the other hand.
Tulips around your organ! Ba dum bum chhhhhhh.
With tulips.
Finding crabs on your organ.
A diseased beaver on your organ.