There is no right or wrong way to make handfasting cords, and they can be as elaborate or simple as you want them to be. It really comes down to what you want to represent yourselves, or what is easiest for you.
HOW TO: Create a Home Made Wax Seal. If I Dork out and marry another book nerd we can have a harry potter themes wedding with parchment invitations sealed with wax seals! Or you know, use the rose and do beauty and the beast