From faux to vrai: Shanghai's notorious antique market
Formally called the "antique market," Dongtai Lu houses nothing anywhere close to authentic. Well, majority of it, anyway.
Many of the trinkets and souvenirs sold in the little street shops are replicas, so if you can't find a good deal at one shop, simply move onto the next. You will find some shops that specialize in certain items, such as old fashioned cameras, though I am no expert, such shops seem more authentic than the others that sell miscellaneous items.
There are some venders that sell birds, some that are kept as pets, then there are those that sell the occasional happy puppy, or two.
Tip: It may seem difficult to locate this street depending on where you enter it from. Ask locals for directions.