Of all the original costumes, models and props on display at Universal Studios Hollywood on my most recent visit on May 7, 2013, this Golden Army egg prop from Hellboy II was the one that gave me that 'wow moment'.
Original Golden Army Egg from Hellboy II
Hellboy II: The Golden Army movie poster
Hellboy II: The Golden Army egg prop
original costumes, props and models from Hellboy II on display.
Buy the movie: Hellboy II: The Golden Army Collector's Set [Blu-ray]
Go further behind-the-scenes with this book: Hellboy II: The Art of the Movie