Here's the catch, you have to find the vendors that sell them.

These Fireworks vendors have been kidnapped by monsters and brought them to random locations on the first map of both factions. Your job will be to find them and rescue them. After a successful rescue you will be able to purchase fireworks from these vendors and have some new fireworks to ring in the new year!

Event starts at 4:00PM, monsters will be spawned randomly through the day, the vendors will be there until tomorrow.

Have a great time guys!