This is a shapner I bought for Manu some time ago. Waste of money as far as sharpening a pencil is concerned. The design is very poor and there is not enough place for the pencil shavings to fall in the reservoir easily, they get stuck and you have manually keep cleaning it. I guess I git my money's worth by taking pictures of it.
I have posted my childhood experiences about the milk shortages on Mental Floss. Have a look.