How to cross stitch confetti
Confetti is different colours in one area. For confetti stitches, I use the knotless loop method and make small travels at the back of the project.
Be careful not to waste thread for confetti stitches. If you are left with a reasonable size thread, do not waste it, use it in some other confetti areas.
Confetti is usually in large cross stitch projects and can be a little boring to start and stop stitching individual colours but be patient and take your time.