This is a simple and inexpensive method for etching glass.
The materials that you need are a piece of glass, a box and quartz sand. First you must protect the back side of the glass, cover it with tape!
You can use templates. Stick the templates on the front side of the glass.
Drill holes in the box and fasten the glass to the bottom of the box using a thread (inside of the box)
Put the quartz sand in to the box and start shaking the box very hard!
After 30 minutes of shaking or more get out the glass and remove the templates! Your etched glass is finished!