Mattel found themselves with a hit on their hands last year when they announced a new line of their Thomas The Tank Engine toys which presents the familiar engines mashed up with DC Comics characters.  This spring little engineers will be able to find 35 new engines in stores which are sold in four packs ($7) and nine packs ($15) in their favorite toy aisle.  Among the new designs are included the train Stephen as Sinestro and Gator as Green Lantern.