Haven't tried this but it might work. Lightly spray the insides with an adhesive and empty the contents of your vaccume cleaner into it. Shake it around a bit and empty the exsess. If you got dogs like I do maybe some of the hair will stick in there like cobwebs. Hope this works.
I agree with
doing some specific sanding and rubbing and then more sanding..
use different grits for different depths of wear to make it look worn/used.
In some spots like around the top if a cover was on it, on the bottom (sliding off shelf effect) and along edges as if another jar was next to it .
You can also make some mud water then dunk them and let dry ,spray with clear if you want it to stay on while handling. fine sand for scatches then.
Interestingly, several years ago in England, we purchased a 1/4 of the neighboring field to our house. When we put up the post and rail fencing, we dug up half a dozen or so Victorian bottles. They cleaned up beautifully and look "Like New" ... in the sense that the glass is in perfect condition.
What makes them look old is the slightly "imperfect" shape or bubbles in the glass or the words on the bottles... unless glass is damaged, it cleans up pretty well.
I think checking out flea markets or antique stores for old glass is a great idea.
unless you want that frosted look, i would just use reg old brown/black/grey craft paint on an old sock.....smear some on - rub around....let sit a few seconds depending of how much you want to age it...then wipe it off...unless its going to be in a VERY well lit place....i think it will be quite convincing...and some on the inside as well...leave a little watered down paint sit in the bottom so it gets some rings around it like its been there for ages....i just wouldn't go spending too much time/money when you can get great results in a few minutes and pennies doing this....my 2 cents - 1031fan