Are you one of those people who still use a pencil from time to time? Then you definitely need this automatic pencil sharpener for the USB port:
The automatic pencil sharpener automatically sharpens pencils (lo and behold!). To achieve this, the sharpener starts to turn around as soon as a pencil is put in its hole. While sharpening, the built-in LEDs start flashing so that you can also enjoy a great view while sharpening. The automatic pencil sharpener needs a USB port for its power supply and has a height of about 7,5cm.