Often referred to as "Charm packs," these little cuties are made up of collections of 5" squares. We have books that can help get your creative juices flowing with some charming (see what I did there?) ideas for projects! Sew 2 right sides together and sew 1/4" around the perimeter, cut them corner to opposite corner, open them up, press. And voila! You have made to super simple half-square triangles!