Oh my goodness, have you seen this project by the National Geographic? They managed to recreate the balloon house from Up and actually make it float (of course it took a lot of tweeking; it is impossible to recreate it exactly)!
Here's the skinny on the project, as listed on My Modern Met:
March 5 at dawn National Geographic Channel and a team of scientists, engineers, and two world-class balloon pilots successfully launched a 16' X 16' house 18' tall with 300 8' colored weather balloons from a private airfield east of Los Angeles, and set a new world record for the largest balloon cluster flight ever attempted. The entire experimental aircraft was more than 10 stories high, reached an altitude of over 10,000 feet, and flew for approximately one hour.
The filming of the event, from a private airstrip, will be part of a new National Geographic Channel series called How Hard Can it Be?, which will premiere in fall 2011.
Cool, right? I can't wait to watch the show when it premiers.
(Want more balloon inspiration? Check it out here.)