You can try your luck in Paper Mario: The Thousand-Year Door at the Happy Lucky Lottery in Rogueport. The prizes to be won range from useful to mediocre, but if you have the Coins, the risk might be worth taking. The Happy Lucky Lottery is run by a large Bob-omb named Lucky. Once you have your Lottery Ticket, you can check the daily numbers and speak to Lucky for your reward. To get the best prizes, you'll want to understand how the lottery system works in Thousand-Year Door.