On Wed, 22 Nov 2006 23:27:29 +0000 (GMT), "Dave Plowman (News)"
wrote:

In article ,
The Medway Handyman wrote:
Chinagraph pencils are the answer but they are hard to find. I buy
online.

My local small stationary shop had them last time I looked. Luckily I've
got a stock from tape editing days. ;-) Including a super propelling one -
but can't get re-fills.

Regular ones are used for marking out cancers on X-rays, so are
eminently available.

DG