I saw these at Walmart the other day for $14.96. Good price if anyone needs these specific figures I guess, though the Thor one would probably be the least desirable since he was included with the core game.
I don't have the time to resize the images right now, so here are links to the images.
http://i.imgur.com/SPG6hb5.jpg
http://i.imgur.com/g7FgGL2.jpg
http://i.imgur.com/PcsEgH0.jpg