Yes, the Hobby Lobby near me has a nice selection of colors and a lot of accessories- snaps, releases, cord stops., etc.
While chair-bound recovering from an injury I got pretty good at making stuff. (youtube is your friend!) I even made up a little "jig board" for different length paracord items. That chair time probably could have been better spent learning more about other things, but the paracord "doo-dads" were therapeutic!