I use something called "poor man's Caruso's", LOL. I use this method to touch up a rollerset in a pinch without a curling iron, especially in the front, or anywhere that the curls are looking fuzzy and old.
Anyway, I use regular magnetic rollers (small), lightly spritz my hair with a conditioning leave in (concentrating on the ends) and roll my hair in a spiral fashion. I leave in the rollers as I get ready for my activity, as little as 15 minutes but no more than 30. I carefully remove the rollers again in a spiral fashion. My hair is not completely dry, because if it dries all the way the curls will be too tight and not drop the way I want them to. When I unroll them, the curls look like I spiraled with a curling iron. They are smooth and sleek. I do not disturb the curls until the hair completely dries. I have 4a relaxed hair.
HTH! (
I can post a pic of a recent style I did using this method if you like).