I made these a few weeks ago and never got around to posting them:
They're a great way to use up ribbon scraps - each barrette only uses about 3" at most. The barette bases were bought at Hobby Lobby. The first picture has the kind with the spring hinge, the ones below are are the clip kind (you can see them better in the third picture). A little bit of adhesive like E6000 or Amazing Craft Goop on each end holds the ribbon in place. The ribbon is folded around to the back of the barrette about 1/4" on each end. To keep the glue from sealing the barrette shut, I clipped them onto wax paper while they dried.
Instructions for these can be found in Button It Up:
I think some of those liberty scraps on a covered button would be great for my hair.