Firm adds characters from the film to its range in time for the film release.
Customers can now make their own Erik - the star of the new movie and son of Mumble - which features a light-up bow tie and can be dress in a red Nordic sweater, red Nordic Sherpa hat and scarf, jeans and black rubber boots.
Also available are characters from the film, Lovelace, Sven and Bodicea in plush form.
Consumers who purchase Erik will receive a virtual Erik for their online character to redeem on Bearville.com, the Build-A-Bear Workshop virtual world.
Additionally, all customers will be able to view the Happy Feet Two trailer in the Bearville theatre, meet a virtual version of Erik and take a mini-quest to earn a special virtual movie poster for their Cub Condo.
"We are thrilled to be working with Warner Bros. Consumer Products again to bring our Guests these furry friends," said Maxine Clark, Build-A-Bear Workshop founder and chief executive bear.
"Our guests will enjoy chilling out with these cool penguins for some frosty fun all season long."