There are some scrappy quilts that are basically one main color. Collect many different fabrics with that color and just throw them all together even if they don't really seem to go together. Don't forget to throw in a little bit of color that is close but not the color you are collecting. Red, maroon, pink or lots of shades of green from yellowish to blueish. I've found the hardest to work with are the blues but I've seem some beautiful blue scrappy quilts done. Most of the time even if you think a fabric doesn't work it will in the big picture of the whole quilt.