The Tsunago pencil sharpener lets you "chain smoke" your pencils by connecting pencil stubs together. The Tsunago ("let's connect") has three blades. One sharpens like a normal pencil sharpener. Another bores a hole in the bottom of one stub. The third makes a plug in the other stub. All you need is a bit of wood glue to keep the pencil pieces stuck together.

Here's some who used the sharpener for a courageous Blackwing pencil rescue.

(Thanks, Kent!)