I've got a ........ in my pencil case.

                                            
I've got a pencil, I've got a pencil, I've got a pencil,  IN MY PENCIL CASE.
I've got a ruler, I've got a ruler, I've got a ruler,  IN MY PENCIL CASE.
I've got a sharpener, I've got a sharpener, I've got a sharpener,  IN MY PENCIL CASE...