I kept asking Troy if there was any places in Canada offering igloo building courses, because if there was, I'd like to sign up. He just thought I was weird. So I decided to search for igloo building courses on Google today and found that there are at least two companies in Canada offering an igloo building course (among others). It's kind of expensive, though. Maybe I should just take the self-taught route and try to build one with a bucket this winter.