Rock Rollercoaster and Daddy D are a father and son team from Calgary, Alberta Canada who enjoy building Lego together. Rock Rollercoaster is a grade 4 student who enjoys math and learning about the environment. When he's not in the classroom he's playing hockey, video games or skiing in the area. Daddy D is an advertising executive who enjoys kickboxing, hockey, spin class and snowboarding. They both hope you like their reviews and help you make your buying decision.