Cher: Cherry.

Mabel: Balby.

Emmet: Emmie. <~ MADE IT UP FIRST. XD HA. Bunby. <~He don't know about that. XD

Jai: Seme. I call her that when she doesn't notice. XD

Rhianna: Rhi

My daughter: Baby.

Prince Gumball: Bubba.

Piggy: Piglet. She doesn't know. XD

Hermey: Baby Face, Hermie. He doesn't know about the second on. XD

That's all I can think of! XD Tell me if I'm forgetting you!