When my sister got married two years ago, I took on the task of elevating the rehearsal bouquets beyond bows stuck to a paper plate. (PS...Mine totally looked better than this version. Ha! Take that Martha!) One of the most important skills that I used to craft these bouquets was making ribbon roses. Here's how you can create one of the most classic shapes.
1.) Find the middle of a length of ribbon and fold it at a 90 degree angle.
2.) Fold the right side of the ribbon over the middle triangle so that it's facing left. Fold the downward facing ribbon to point up. Continue folding the ribbon until the whole length is folded.
3.) Hold the two ends of ribbon firmly to keep it from unfolding. With your other hand, pull one of the ribbon tails until a rose is formed. Use a needle and thread to tack the ribbon together in its formation.