Here's what the finished model looks like:
Link & image credit: Paper Toy Tintin (via The Tintin Blog via Super Punch). Be sure to download the large version.
Also: There are lots of other comics-related paper projects out there, especially at Christopher Beaumont's Cubecraft, which features characters like Wolverine, The Tick, Scott Pilgrim & company, Hellboy, and even Spider Jerusalem(!). Anime and videogames - even literature - often inspire more complicated designs.
Note: Tintin is Copyright © Hergé / Moulinsart 2009. The Tintin papercraft model was released under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 Generic license.