This street is always crowded especially on and before the first, 15th and 30th lunar days, the Mid-Autumn festival, Lunar New year, and when the Kitchen God returns to Heaven.
On such days, people go there to buy paper statues, such as horses, air planes, clothes, shoes, hats, TVs and radios, money, gold, houses, cars, motorbikes and air con, etc. These statues are then burnt and offered up to deceased relatives. Whatever we use in daily life, they need too. Vietnamese spend a fortune during these events to celebrate and commemorate, and they are happy because it brings good luck and it's part of our culture.
Our government has been trying really hard to stop people burning these paper offerings on the street as it affects the traffic and the environment. This practise may be illegal in the near future just like public use of fireworks which was banned about 10 years ago.
Walk along Hàng Mã Street on any of these days to see the colors and the crowds.