Invisible machine applique seems to be mostly associated with either smoke or clear monopoly or nylon threads. When starting my journey with invisible machine applique these are the threads I used too. Now of course there are so many wonderful threads available, many of them suitable. The only thing that may be of concern is that you need a variety of colours, with monopoly smoke and clear threads there are only two colour choices, therefore limiting how many colours you need. Read more about my thread choices.
I love making quilts from scraps. Read about my process for making the Scrappy Stars quilt using tailors clappers for pressing seams nice and flat.
Giveaway !!! Scrappy baskets Quilt Pattern, read more below about how to enter.
Many times I end up with scrap pieces that have already been cut into triangles or have a 45 degree cut on the end of a strip that is not useful for anything else. read more about my process.