|DIY from Apartment Therapy|
Krylon Lookinglass spray paint
Spray bottle with a 50/50 vinegar/water solution
Glass object of your choice
First, if you are working on a lamp, spray the outside of the glass with the Lookingglass spray paint. If you are working on a bowl or vase, spray the paint on the inside of the glass. You will want to cover the outside of the vase with craft paper to protect it. The lookinglass paint is very thin and runs easily so spray very sparingly. You will want to apply a few thin coats. Let the paint dry for 3-4 minutes between each coat. After the vases are completely dry you will begin distressing them. This where all of the magic happens!
Spray your vinegar and water mixture over the part of the glass you painted.
You just need enough mixture to cover the surfaces in little water beads. After letting the vinegar solution sit for approximately twenty seconds, dampened a paper towel with more of the vinegar solution and then rub the the insides of the glass. The vinegar solution will soften the paint. Gently wipe away the moisture and little bits of the paint will peel away. After you have the worn look you desire, give your glass one last spray of lookingglass paint so that the clear spots are not completely bare.
I recommend one last coat of clear spray paint to seal the entire project!