Braiding in small, tight braids from the scalp all the way to the end will result in tight, tiny curls. Dividing the hair into four or five sections and making large, loose braids will give large curls. Simply braid hair when damp and leave in overnight. Take out the braids the next morning.
Tying hair up into a bun can curl hair. Simply pull damp hair up into a loose or tight bun (tight bun for tight curls, loose bun for loose curls) and leave until dried.
Taking a sock, make an "x" cut in the toe, then roll it down until it looks like a doughnut to make a sock "platform". Simply pull damp hair through the doughnut, roll it up against the head and secure until dried.
Simply roll damp hair (section sizes based on what curls are desired) into velcro rollers. Blow with hot air for five minutes, then cold for five minutes. Take out fifteen minutes later.
Take small pieces of damp hair and twist one way until completely against the scalp. Secure and let dry.
Taking tissue paper, fold longways until it's a small thick strip. Taking damp hair, pinch it against the strip and roll up to scalp. Tie off gently and let it sit until dry.