If your little one gets restless during school vacations, the Museum of the City of New York will offer hands-on workshops throughout the week of winter break. In "Winter Wonderland: Collages," tots stroll through the museum's Holiday Exhibition, then create collages of winter scenes. In "Chet the Secret Agent Architect," an architecture-themed scavenger hunt lets kids search for educational clues, then create their own model buildings. "Pushing Buttons: Activist New York" allows tykes to explore the museum's related exhibition and then create their own button showcasing a cause important to them. Kids can choose to participate in one, two, or all three activities. Registration is required. All ages.