Headbands for boys?

My son's hair is getting long in the front and keeps getting in his eyes, but we're not quite ready to cut it yet. The only headbands I can find are either very frilly (bows, etc) or athletic sweatbands that look ridiculous. I don't mind pink/purple/florals (pink and purple are his favorite colors) because colors don't have genders, but don't like frilly things in general. Any ideas on how I can keep my son's hair out of his eyes? Just plain, simple headbands or other hair accessory that will stay on an active toddler? Links welcome!