Pringles can?! So cheap, I would do glitter or spray paint.
5 Minute Curls- I (Audrey) have done this and it's actually turned out to be some of the best curls I've ever had. It's quick, easy, and turns out great, especially for layers.
DIY Embroidery Ribbon Flower. This video tutorial is all there is.
DIY Cute Little Backpack