Alexa’s Elixir includes the 42-foot-high Long Leif, the tallest troll Dambo has ever made, and a paunchy bunny fashioned from thousands of plastic bins upcycled from a Minnesota tool manufacturer.

Alexa, the cloud-based “brain” and voice that powers Amazon’s own Echo-branded lineup of smart speakers, as well as a number of third-party devices, is currently only available in English ...