First, Understand the direction of the light & sketch a rough outline of your sharpener. Use simple shapes and straight lines to get your idea down.
Now, Start rendering from upper side. But remember the direction of the light and start giving medium shade on the top from the right side.
Here we have to start shading to left side of the sharpner, the shade should be light because its front of light.
Now this is the most important part, HIGHLIGHTING. By shading complete this part and we are almost done.
This is the final stage. Start adding finising touches. And again remember the direction of the light & give shadow to our object.
Hope you've found this 5 simple steps of sharpener drawing useful & informative. If you also want to become a expert in object drawings then you can join our Online Sketching Course by none other than Sir Sadashiv Sawant