Piece each strip into one long strip. Order is not hugely important. I just grabbed them as they came out of the package.
Continue lining up the ends and sewing a seam. You'll double the width of your fabric every time. End result: see top of post. A glorious, anabashed riot of colour!
Added bonus: because it's so simple, it's a good opportunity to practice sewing straight seams. Very very straight seams.
Now I need yet more fabric...binding, backing, and batting, once again. Better go tweak the budget to include more money for hobbies!