The Brothers Flub.

The Brothers Flub is an animated television series produced by Sunbow Productions and co-produced by Ravensburger. It aired in the United States of America on the television network Nickelodeon. The show's titular characters are a pair of alien brothers named Guapo and Fraz, both of whom work as couriers, who travel throughout their universe to deliver packages to a different planet in each episode of the series. The Brothers Flub lasted for twenty-six episodes, airing on Sundays from January 1999 until its cancellation in January 2000!