How to make a auto-pencil in Maya

when I decided to take a photo for it, i just can't find it......

The outer part of the pencil:

1) Create a CV curve as the sketch shows. then revolve it in order to get the body of the pencil.

2) Create a cube and transform it like the picture. Then I can use "extrude" and scale tool to build the clip on the pencil.


The core of the pencil:

1) Create a new CV curve (1 linear) like the sketch and revolve it to earn the core of the pencil.

2) And the cap of the pencil can be made in the same way like the core of the pencil.

Finally, create a little polygon cylinder as an eraser. Then compose them all.