Zoku, whose Quick Pop Maker has become a summer staple these past few years, has expanded its product lineup. The company’s Slush & Shake Makers (about $20) “have been doing incredibly well,” says Aarons of Child’s Play. “You can take anything, pour it inside, stir it, and you’ve got instant slush,” he says. If you don’t care about the instant part, Zoku’s new Fish Pop Molds (also $20) create incredibly detailed popsicles shaped like sharks, puffer fish and other undersea creatures.