There are two tickets to the sold-out Underground Tour in one of the round trash cans by the tour entrance (the one closer to the Cafe). Dig down through the trash to find them, and return them to their owner at the Web Browser cafe on Main Street.
(see related question)
They are in the trash can by the tour guide.The trash can with the lid off
Look in the round trash cans to the right of the Tour entrance. Move the trash out of the way until you find the tickets.
The two tour tickets are in a round trash can to the right of the Tour entrance. Dig down through the trash to uncover them.
They are in one of the two trash cans near the Tour entrance (under the garbage).
In the second trash can to the RIGHT of the tour place then go to the man in the internet cafe.
in the trash can next to the tour entrance then bring it to the guy in the Internet Cafe.
The trash can you find the Underground Tickets in is already open : it is the "right" one of the pair to the right of the Underground entrance. (Just paw through the refuse to the bottom.)
look in trash can move trash aside and you will see it.
representative government
There are 2 tickets at the bottom of one of the two large trash cans to the right of the Underground Tour entrance. (Dig down to the bottom.) (see related question)
What are you talking about there are no orange tickets on Shark Tooth. There are tour tickets in the trash can in Counterfeit. Please stop asking these stupid questions. I know how to beat the island and trust me there are no orange tickets. To talk to the medicine man you need to get a grass skirt from the man on Booga Bay.
Recover the Underground tickets from the trash can near the underground entrance, and return them to their owner at the Internet cafe. There is nothing you can do about the balloon boy.