Cost;
Glass=Less than you think from a hardware store.
Sandblaster=12.95-19.95
Sand=3.00 or so, depending on where you get it. I thik it was 3 bucks at Home Depot.
Compressor=Borrow one, because they get expensive.
Self sticking Shelf Liner=5.95 at Home Depot.
Exacto knife=don't remember but I got the best Home Depot had, and it couldn't have been more than 10 bucks.
You will re-use everthing except for the Glass, so the cost involved is mainly to get started. One bag of sand will do about 10-20 projects. The same with the Shelf liner.
On the Hurricane Etch, I used a much different way of making a Stencil, and it is MUCH better! But it is also ALOT more involved. There are imperfections in the glass used for this write-up, that would not have been there had I used my original stencil idea. But I was trying something new in the process of doing this how-to. There is a very quick fix to that and it was posted after the write up. Go over the Shelf liner with Blue Painters Tape to thicken, and stiffen the shelf liner.
Enjoy.