Keep an eye out at Cora Coralina Fair — you're sure to come across some treasure or funny trinket among the stalls here. After you've admired the wares, try some fare from one of the local food vendors.
To visit this community marketplace, find your way to Central Sector. There are plenty of other things to see in this area, like Flamboyant Park, Areião Park, and Flamboyant Mall.