The blue-eyed twins are cameo characters of Another Oobi Vacation. They are also the first thumbs to be in Another Oobi Vacation. They are the first characters to be played by Peanut L.
The thumbs where born at a unknown time. They live somewhat close to Charlie's house, for they where walking by it. They presumably are dead because Dave decided to eat them for dinner.
These characters only appear in Come in, Sleep in, Eat 'Em!