You can sharpen a pencil without a pencil-sharpener, but you can’t sharpen a pencil without a pencil.
The entire video is worth watching. (NSFW – due to a few uses of profanity)
“It’s just so much more cost-effective to use real, well-made tools, instead of having to continuously repurchase cheap mass produced sharpening instruments.”
What’s awesome about this is that it’s legit: http://artisanalpencilsharpening.com/