The Pagoda Jr from TWSBI has all the brilliant features they are known for, at a fraction of the price.
It comes in two colours, Blue and Marmalade, each with a different lead size. The pencil works on a bush-button mechanism, and under the button is a concealed eraser. To stop it rolling away, it has a hexagonal cross section and also features a rubberised grip that runs up the facets of the pencils body.