A number of downtown shops tout "traditional" souvenirs, though their offerings run the gamut from quality craftsmanship to tourist schlock; choose carefully. Duckworth Street is the main shopping area, and the street to walk up and down if you've only got time to shop a little.
For the real stuff, though, consult the online search engine of the Craft Council of Newfoundland and Labrador at www.craftcouncil.nl.ca/studio. You can search by region; select "Downtown St. John's," and you get back a list of about a dozen potters, printmakers, fiber artists, and other artisans.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.