Ho Ho Tribe

From Zelda Wiki.org

The Ho Ho Tribe is a group of seven "telescope"-wielding, treasure-seekers in Phantom Hourglass. They are based on Old Man Ho Ho from The Wind Waker. They originate from the land of Wayaway and now sail in a ship in search of treasure.

In the game, they buy a specific treasure of Link that changes from time to time, for more money than the treasure teller found on Mercay Island. They can be found on the Southeastern quarter of the world map. The amount they offer and the item they seek changes at midnight on the internal clock of the Nintendo DS.

Also, during the Phantom Hourglass trading sequence, the one that doesn't have a telescope will trade you a kaleidoscope for an Adventurer's Book.