You can make an entire piece of fabric in several different ways or you can use the basic method in each tutorial to turn fabric scraps into strips or panels to be used in quilt blocks, bags, or other fun project ideas.
This tutorial is all about how to make pieces of fabric from oddly shaped scraps of one fabric or several fabrics in the same colorway.
A fun way to use thin scraps is to group them into a color family and sew them to adding machine tape to make scrappy strips.
This way to make fabric from your selvedge edges can be done in strips with adding machine tape similar to the method above or it can be done quilt-as-you-go style straight onto quilt batting or another type of foundation.
You can turn small scraps into single quilt blocks, panels for home decor projects or just keep adding and adding to make a huge piece of fabric or an entire quilt top.
I like to use a color scheme for my crumb quilting but of course you can go as random as you like - you could even add crazy stitching and make full on crazy quilts.