Posted for "Bruce Gray" <Bruce@glasair.org>:

 Sure, you can buy one of those expensive wire marking tools like STEC used
 (Big bucks), on down to a shrink tube printer (Kroy) for less than $100 on
 ebay. I have a Kroy tube printer.
 
 Bruce
 www.glasair.org
 
 [ I also own a Kroy..  -Rob ]