Glass and Mirrors - Frosted look for entry glass

Hi there, I've got five side entry glass blocks (of different sizes), and I wish I could get them etched (frosty looking) for privacy. First of all, do I get a etched cream or spray? And of course, it would be nice to have some intricate patterns on them, would there be a problem using the spray or etched cream? and after getting the frost look, is there a process I could use to coat (to make it permanent),so that I could wash/wipe without causing any markings? Appreciate any advice, thanks!

Some glass shops can have the blocks sandblasted with any design you desire.

If the glass is tempered you can not sand blast it or etch it. If it is tempered glass you can use the fake spray on frosting.
I used it in my front door.
I taped a grid pattern, sprayed, then peeled up the tape, beautiful. It was messy - left quite a dusting, take out your glass to spray if possible. Keep the spray coating inside the house, and beware it will scratch off.

Glass blocks are not tempered and tempered glass can be lightly sandblsted to create a frosted look. Deep sandblasting is not recommended since it can possibly shatter the tempered glass.

Hey there,
Thanks alot everyone for all your useful tips, comments! I think I have rephrase my original question - I have a 5 glass panels, just plain glass, and I don't think they're tempered glass. I don't think I can remove the glass panels and how else can I etch the glass panels to get the etched look without getting the dust? and also is there any way I could make the etching more sustainable from scratches, markings, etc., (esp. when I need to wet clean the glass), like some kind of varnish for glass? I think getting the etched look would provide some kind of privacy screen from the outside and do not have the budget to shop for expensive thing! Thanks donna for the great idea on patterns (it looks easy to do!). Thanks again donna and johnam for all your suggestions. I'm a newie at this and always wanted to do this but always fear I might screw up the glass (esp. when it's the front entry).

Try a stained glass or hobby shop to find etching cream. An acid to permanetly frost glass. I reccommend trying it out on a scrap piece first. Stickers or tape are still an option to be peeled up after to reveal clear.

She hit it with the acid cream and spray on frosting.
But I am confused as to what may have caused the DUSTING?
There is a spray on coating that smells like glue, found in the spray paint can section.

The etching cream is painted on, left on a few minutes,(see directions on bottle), then the cream is washed off revealing real frosted glass.