Note that, when doing this, it's likely that you'll need approximately twice the normal amount of wax for your seal, and you'll need to apply it twice: once to fill the nooks and crannies, and a second time to apply your seal. Painting the seal with a paint pen (I recommend Sakura Pen-Touch 1.0mm metallics) is optional but can look extra-nice. :-)

You can use double-sided tape or glue to keep things in place before you wrap with twine if you want to be extra-cautious, but it isn't usually necessary if you can keep the pressure on while you wrap it. Have fun! :-)