Google is useful like
http://www.ikonsignetch.com/app_rezinite.htm
http://www.megauk.com/cgi-bin/mega/l...m/quikmask.php

David Billington wrote:

You can buy a photo sensitive product especially made for sand
blasting masks. I haven't got any links handy but you could search or
ask on rec.crafts.glass.

Will wrote:

Hi guys, a how do I question...

What I am trying to acheive is glass bottles etched with our initials
for wedding favours. I have a gritblaster and compressor as well as all
the common tools including a lathe (but not a milling machine).

How should I go around making a mask that I can blast thru to get the
required pattern of letters?

I will have to blast 40 bottles, so a mask that only lasts 4 gos is not
up to the job, but 10 goes is possible if it is more than 4 times as
easy as making one that will last 40 goes IYSWIM.

The pattern is gonna be quite small 1cm to 1" max

Thanks
Will