My kids, a boy 3 and a girl 5, are getting into Superheroes. The other day, I went and bought a bunch of single common Heroclix from Twilight Cards of a lot of the guys they recognize-- Captain America, Spider-Man and Hulk for him, and Hawkgirl, Batgirl and She-Hulk for her. I also bought a bunch of baddies to fight: Vulture, Doc Ock, the Lizard, Scorpion and a Skrull. I gave them as action figures to the kids. Cost me about $17, with shipping, for 11 figures. The kids went NUTS over them!