hair colour trend

How do you make waves in your hair like these? I really like this hairstyle, and I want to make these mermaid waves at home, but I don’t have a curling iron or many products either. Here’s a link: http://www.fashionising.com/trends/b–Womens-Hair-Trends-2009-Styles-Colors-Cuts-1229.html#1940swave (I like the middle one.) Thanks in advance. My hair’s dark brown, it’s straight, about [...]