Machine applique can bring a whole new level to your quilt blocks, but it can be used on so many other projects as well. Dress up some old jeans, put a design on a bag.
Here The store carries double sided fusible sheets for use in applique work.
You can grab some fabric glue as an option as well.
And then interfacing you need some for the turn method that Lori Holt uses in her videos.
Give the videos a good look. And then get to deigning your own custom applique designs!