Shape Memory Crayons

Shape memory alloy (NiTi) is metal which, when subjected to heat and or electricity, will contract in upon itself. The first exposure to heat creates a lasting impression, and every succesive exposure will return the metal to the position it assumed from the first impression. Each heat signature will make the metal react differently, obviously. With the recent trends in pens being towards cushioned grips for 'extra comfort', this could be of interest. Use even, maybe. When you first grip the pencil at it's rubber grip [as the intructions on the pack read], your body heat [which is more than sufficient, by the way] passes through the thin rubber layer and to the SMA layer below. After gripping hard for a good, say, 20 seconds, you imprint yourself on the pen. Now, every time you reach to use it, it molds to YOUR fingers! The ultimate in writing comofort! Sure, sure, it seems like a company exec desktop toy (and most definately is a Hammacher Shelemmer item), but seeing as how the SMA used wouldn't cost much more than the normal amount of rubber used in a pen, I think it's a first-world ulti-consumer resource-waster winner!