Iron Man toys, figures and costumes are off to a flying start.
Disney says the official products are "already proving a hit in Disney Stores".
Kids can learn the moves of Iron Man by attending the Marvel Training Academy in Disney Stores, or join the Marvel Super Hero Takeover running on Disney’s Club Penguin virtual world.
Meanwhile, Tesco has launched its own Stark Armoury Iron Man 3 app that customers can use in-store and online.
"Retailers across the country have welcomed the addition of a new and exciting selection of Iron Man 3 products that have joined existing Avengers, Spider-Manand Marvel product ranges," read a statement from Disney.
For older fans there's the Iron Man 3: The Official Video Game for mobile devices, as well as the new music compilation albums Heroes Fall. New technology also let fans "become Iron Man".
The news comes after Marvel's Iron Man 3 movie topped the UK box office last weekend.
Some official Iron Man designer women's shoes have even been created.
In addition, the second series of the hit animated show Ultimate Spider-Man will premiere on May 9th on Disney XD, followed in the autumn by the debut series of Hulk and the Agents of S.M.A.S.H. leading up to the release of Thor: The Dark World, which will arrive in the UK on October 30th.
Want to receive up to the minute toy industry news straight to your inbox? Click here to sign up for the free ToyNews Daily Digest and Newsflash services. You can also follow ToyNews on Twitter and Facebook.