I am surprised that there are so many replies. Just checked back and you have given so many ideas. Thanks for the links too. The colored pieces are rectangles, 5"X 10" without the black sash piece. I think they are what is called charm squares, cut in half. I was thinking Illusion but the black strip goes the length of the colored rectangle with no white square to create the illusion. I don't know if I want to unsew all those black strips. I will mull over all the ideas given and see what I can come up with.
Big THANK YOU to everyone that took the time to respond.