Sugar and Spike and Spike" series...is the most charming thing I've ever seen in comics." DC attempted to license "Sugar and Spike" as a syndicated newspaper strip but was unsuccessful. Sales on the "Sugar and Spike" issues of "The Best of DC" were strong enough that DC announced plans for a new ongoing series featuring the characters. The project was never launched for unknown reasons. Mayer had an agreement with DC that no one else could write Sugar and Spike. However, they have occasionally made cameo appearances in modern comic books. They are rescued by the underwater heroine Dolphin in "Showcase" #100. They
Silver Age of Comic Books appear as visual effects on the screen, spelled out in large cartoon letters. Circulation for comic books in general and Batman merchandise in particular soared. Other masked or superpowered adventurers appeared on the television screen, so that "American TV in the winter of 1967 appeared to consist of little else but live-action and animated cartoon comic-book heroes, all in living colour." Existing comic-book publishers began creating superhero titles, as did new publishers. By the end of the 1960s, however, the fad had faded; in 1969, the best-selling comic book in the United States was not a superhero series, but the