For the bows, you can either make them or buy them. I got mine at Joann Fabric and Craft store. They we're only $2.99 each.
Then I got a bag of hair clips, also from Joann's. Again, the bag of about 20 hair clips was only $2.99.

After you gather all your materials all you need to do it put a strip of hot glue on the top of the hair clip, center your bow, and press it into place.

Let it dry and rock your new bow. :]