Mark Ruffalo has kindly asked Marvel for more Black Widow merchandise.

"Marvel, we need more #BlackWidow merchandise for my daughters and nieces", the Avengers star tweeted out. "Pretty please"

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Ruffalo's tweet comes in response to news that very little official Avengers: Age of Ultron merchandise features the character. As brought to my attention by The Mary-Sue , out of 56 official items on Marvel.com, Black Widow can be found on four. Other Marvel retailers like Hot Topic and SuperHeroStuff don't offer much more.Ruffalo's fans have responded that it's not only girls who want to see more merch featuring Black Widow. She is, after all, a kick-ass hero for everybody.

Lucy O'Brien is Entertainment Editor at IGN’s AU office. Follow her ramblings on Twitter.