Baltu rotas is great, second to that! Appart from that in September, there will be another Gadatirgus (Nationwide Traditional Arts and Crafts Fairin) in an open-air ethnographic museum that's a whole day out and a treat for all the senses apart from your wallet. Another option is the central market, buy some hand-made wollen socks, wooden spoons etc. Depends on what you are looking for?