Amazon.com : Toddler Helmet Kids Bike Helmet for 2 3 4 5 6 7 8 Years Old Boys Girls with 3D Dinosaur Design Protective Gear Set and Safety Certified Toddler Bike Cycling
Dino helmet cover (in universal size) from Evercover
Amazon.com : Kids Bike Helmet,Lovely Green Dinosaur Kids Helmet Ages 2-5 Years Old Boys Girls Sports Helmet for Balance car, trikes, Scooters, Bike and Other Outdoor Sports : Sports & Outdoors