Just along the main street, towards the beach, there are many handicraft shops where you can buy jewelry, souvenirs, etc:
Arte e Capoeira
Balaio de Couro
Fleur d'Amazonie
Jeri Arte
Prata da Casa
Meia Lua
Also, there are many narrow streets where you can find:
Sunglasses, Italian design & for kite and windsurf practice OKLOS
Vila Chic Boutique
Strep Less
Mangrove
Infinito T-shirts
Pé na Areia, Havaianas
etc...