Pencil Equipment

Every now and the I get a mad idea, such as attempting to create an anti-gravity device.

Others are somewhat less impractical, such as starting a pencil factory in a disused building, in an under-served neighborhood, as part of a program to teach local students reading, writing and 'rithmatic, as well as responsibility, deportment, initiative, there's no free lunch, etc.

I figure actually making the pencils can be done with little risk of harm, while offering a basis for lots of education - cost control, quality control, marketing.
Students would immediately see the value of math when they are called upon to compute the profit maragin of pencil brand X.

Any ideas as to where I might acquire some gently used pencil making equipment?

Thanks to you all.