Once per day, you can earn three event tickets per account by completing the daily event quest, Honest Toil. You will also get a Gold quality Parcel from completing the quest, which contains better rewards.
As usual in events, the event tickets can be traded for special items by visiting the
Impresario merchant. The merchant can be found in Daggerfall in
Glenumbra, Vulkel Guard in
Auridon, Davon's Watch in
Stonefalls, or Belkarth in
Craglorn.