applique pattern/project - This will be a project you want to start, have already started or want to buy a new one. Or you can look for something in a book or online that you could use. Layered fabric in a design will give you the benefit of learning the unit technique.
appropriate fabric for your project - I like Bottom Line neutral or Invisifil thread
Scissors, thread, any other materials you might need (matching color thread to piece to be appliqued. (I use Bohin applique needles and serrated scissors.)