So two years after this post, I finally got me some Havana Twists. They are all that and a bag of chips.
I did them myself using the invisible twist method. You can check out a tutorial here. It is super easy to do. But just don't wash your hair or your roots will come out the twists. With that being said, I will probably keep these about three weeks, wash my hair, and then reinstall. I used Marley hair. I used 2, 3, and 4 strands depending on how much of my real hair I used. I think if I do them again next time I will make them shorter. When I salsa dance they hit my dance partners in the face. They took about 3 hours to install.
People keep thinking that this is my real hair lol.