int id = Bukkit.getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {
            @Override
            public void run() {
                final List<Location> locations = (ArrayList<Location>) createCircle(p.getLocation(), 5);

                for (int i = 0; i < locations.size(); i++) {
                    final int j = i;
                    Bukkit.getScheduler().scheduleSyncDelayedTask(Main.this, new Runnable() {
                        @Override
                        public void run() {
                            //Spawn the Firework, get the FireworkMeta.
                            Firework fw = (Firework) p.getWorld().spawnEntity(locations.get(j), EntityType.FIREWORK);
                            FireworkMeta fwm = fw.getFireworkMeta();

                            //Get the type
                            int rt = r.nextInt(4) + 1;
                            Type type = Type.BALL;
                            if (rt == 1) type = Type.BALL;
                            if (rt == 2) type = Type.BALL_LARGE;
                            if (rt == 3) type = Type.BURST;
                            if (rt == 4) type = Type.CREEPER;
                            if (rt == 5) type = Type.STAR;

                            //Get our random colors
                            Color c1 = Color.fromBGR(r.nextInt(255), r.nextInt(255), r.nextInt(255));
                            Color c2 = Color.fromBGR(r.nextInt(255), r.nextInt(255), r.nextInt(255));

                            //Create our effect with this
                            FireworkEffect effect = FireworkEffect.builder().flicker(r.nextBoolean()).withColor(c1).withFade(c2).with(type).trail(r.nextBoolean()).build();

                            //Then apply the effect to the meta
                            fwm.addEffect(effect);

                            //Generate some random power and set it
                            //int rp = r.nextInt(2) + 1;
                            //fwm.setPower(rp);

                            //Then apply this to our rocket
                            fw.setFireworkMeta(fwm);
                        }
                    }, i * (8 * 20L / locations.size()) );
                }
            }
        }, 0L, 8 * 20L);