Tool Erasers

Without having first seen a picture, I got hopeful that these were for erasing mistakes made with tools. You know, instead of the mythical but much-desired "board stretcher", you could at least have the "saw cut eraser". The "mortise hole mover" maybe.  But no.

On the other hand, as an office-friendly means of demonstrating your tool addiction, they're kinda fun. You never know when a rubber hammer head in the pen pot could draw out a connection to real tools. Although little plane-shaped erasers would be even better...