Keep an eye out at Hoa Binh Market — you're sure to uncover some unique curio in one of its many stalls. After you've had a thorough browse of things, try some fare from one of the nearby food vendors.
You can keep your money in your pocket, because it won't cost a cent to explore Hoa Binh Market. Located in District 5, you'll find some interesting attractions not far from this community marketplace. Why not explore Ben Thanh Market, Pham Ngu Lao Backpacker Area and Saigon Square too?