These are more for embroidery floss, but they have a ton of free patterns and instructions: http://friendship-bracelets.net/
Also, you might search for some paracord bracelet instructions. You can use something besides the paracord, but she might like some of the designs. You can find cool ones at http://stormdrane.blogspot.com/
or on youtube http://www.youtube.com/user/TyingItAllTogether
has a ton of different knots that she could incorporate & his instructions are great. Or search for macrame bracelet patterns. Those could be cool done in ribbon too.
Hope that helps.