Plain and simple, preschoolers love Velcro. Now their favorite material moves off their shoes and into the playroom. Think of Squashblocks as stiff flat cushions, edged with thin strips of Velcro. Each square can be stuck to a neighbor, so that kids can form anything from a fort, to a boat, to a spaceship, in a matter of minutes. They'll get lots of fine motor practice from sticking the squares together, and hours of pretend play as they shift from scene to scene. But the best part from a kid's perspective? Stomping the creation flat when they're all done! (Daydream Toy, $39.25)