Glass and Mirrors - painting on a mirror

Our wall to wall mirror in the masterbathroom is getting black spots at the bottom!
What are your recommendations?

I was thinking may be to paint some on it? but what paint to use so we can still wash the mirror then? where could I find some informations for this project? any web sites suggestions?
about stencil to use for a pattern? any suggestions? where to buy supplies and tools?

All your ideas will be welcomed.
I don't think my husband wants to replace the mirror, it will cost and be a messy job...so the only solution I think is to paint on it....

THANK YOU.

Michael's and other craft stores do sell a type of paint that you can use on glass and mirrors. This should work just fine and still allow the mirror to be cleaned. I however have never done this so I cannot tell you how durable it is.

Another option that should work is galaxy glass. This is also sold at craft stores. The difference is you don't always directly apply it to the final surface (you put it on a plastic sheet and then apply the pieces to the mirror and then fill it in making it mostly permanent) and that it takes on a stained glass appearance. You can even buy the "leading" already piped out for you in straight lines and circles. I have used this on a large kitchen window that has little direct exposure to the sun (therefore it isn't fading) but that does get "steamed" sometimes for water boiling on the stove etc. This has held up for almost 4 years know and still looks great.

Thank you for your response, I will check into these 2 suggestions.

Hi, you may want to check with your local glass/mirror stores who cut same to your specifications. I intend to have a mirror made for my bathroom that, is a big plain mirror, bordered in mirror. This gives a beautiful beveled look and is placed over your existing mirror. The border can be as wide as you like in order to hide the black spots. Hope this helps.

That is a good idea, I will check that too. I wonder how it is attached to the original mirror though? They will probably tell me....
Thank you .
Chantal

My understanding is that water reacts with the silver backing of mirrors and creates the black spots. While washing their hands our grandkids weren't always too careful and water splashed onto the mirror and the backsplash that it sets on. Once we saw the spots, my wife sealed under our mirrors with a small bead of clear silcone caulk and we haven't had any further damage. The mirrors are thick enough that you don't need a visible bead of caulk, just a small bead far under the mirror.

That could probably be the reason! thanks for the tip.
Chantal