i too butt the edges together & zigzag them when i need to piece batting scraps- another good use for batting scraps is to cut them into squares & use them for raggy quilt blocks- i always have a stack of 9" & 6" batting scraps- then if i feel like making a raggy quilt i cut fabric (or build blocks) to either 10" or 7" squares , sandwich them, X stitch across the 3 layers, sew them together into rows, then into a quilt top- clip,(shake, shake, shake) wash (shake, shake, shake), dry (shake, shake, shake) -done...
