Pull up the threads from their loose ends. I must stress this: use ALL of your might without breaking the threads to tighten up, scrunching your piece into a tiny, tight mass. Otherwise, the dye will be able to seep in and you won’t get a clear pattern.
As you may guess I'm currently working on a design for a bee inspired tattoo on my shoulder. This is definitely inspiration! Andrea Lauren: Andrea Lauren - Honey and Hive Fabric and Pattern Design Collection