While DC and the Justice League have been off trying to end hunger in Africa, it looked like Marvel was going to happily sit back and focus on simply ending the hunger of fanboys going giggity for the new Avengers movie. But rest assured--Marvel Super Heroes SAVE LIVES! Specifically, they help save the lives of cancer patients via St. Baldrick's Foundation.
Proceeds raised for the charity from the sale of this Stan-tastic t-shirt bearing the awesome assemblage of Spider-Man, Iron Man, Hulk, Thor, and Captain America go toward the org's efforts to conquer kid's cancer. So you should buy one. Go do that.
Don't worry--there's an Avenger's movie ad on the site in case you need a helping of noncharity hype to help you through the transaction.