There is a ~4 block section near the central area called "Walking Street", or at least that's what the translation of the Chinese name is. Ask a local or your hotel what the true Chinese name is, so that you can get a taxi to the area.
There are countless shops, ranging from street vendors to trendy brand name stores. There are foods readily available too, ranging from meats on a stick, to fast food, to sit-down Chinese places.
What to buy: Everything is for sale here. Sourveiners, toys, clothes, shoes, food, electronics, etc...
You can even make your kids tired by making them run in their own hamster wheel!!
The shops on this street sell Chinese and North Korean stamps, coins, old currency, military medals, as well as many Chinese items of sentimental or nostalgic value relating to the Cultural Revolution or other important eras of modern Chinese history.
There are usually sidewalk vendors set up on the street in front of the shops and these touts sell a lot of different junk including fake Yuan Shikai silver coins and other forgeries. Buyer beware! I got better deals in the shops and was surprised that a couple of them even accepted American baseball cards as barter exchange for their merchandise.
What to buy: On the left is an authentic North Korean military medal and on the right is my favorite: a Chinese military medal commemorating the war to "Resist America and Support North Korea" (Kang Mei Yuan Chao)
What to pay: The North Korea medal cost around 40 RMB and the Chinese medal was sold for 150 RMB because that particular one is rare.
Other Chinese medals can be bought for as low as 20 RMB.