The Little Nutty line of helmets by Nutcase have such cool designs that kids want to wear them. Shows you that even as a little kid we like to wear things that say something about ourselves (must be written into our DNA). When I tell my 16 month old daughter that it's time for a bike ride, she walks up to her "hemit", puts it on then climbs into her trailer. What a great way to start your kid early at protecting their noggin and a great accessory to our push bikes!
Protectively available at Hip Baby.