Disclaimer: Star Wars is not mine.
"Henceforth, you shall be known as Darth . . ." Palpatine seemed to hesitate for a moment. "Marshmallow," he decided.
The former Jedi formerly known as Anakin Skywalker sprang up. "Marshmallow?" he fumed, something he'd been doing an excessive amount of lately. "How can you even think of calling me Darth Marshmallow? Do you even know what a marshmallow is? It's all white and fluffy and sweet!"
"I am your master and I have decided that you shall be called Darth Marshmallow!"
Darth Marshmallow didn't seem to hear him. "Now, Padme, she'd make a good marshmallow! But I, Anakin Skywalker? Your new apprentice? I just saved your life and you can't come up with something better than Darth Marshmallow?"
"Now, Darth Marshmallow, I think you're overreacting--"
"Overreacting! You haven't seen overreacting! And don't call me that! Obi-Wan could come up with something better than that! At least when the Jedi let me on the Council, they didn't choose a stupid new name for me! Darth Marshmallow? Well, I don't have to put up with this! I'm going to go find Master Yoda! I quit!" With that, Anakin/Darth Marshmallow stormed out of the room.
Palpatine stood still for a moment. "Hmmmm, maybe I should have called him Darth Lemon."