Doozers The Doozers are a race of characters from " Fraggle Rock " who love to work . They ' re tiny , green creatures who usually sport construction helmets , boots , and tool belts . Doozers stand approximately knee - high to Fraggles , at six inches tall . Unlike Fraggles , Doozers love to work all day long , and they hate playing games . Most Doozers are construction workers , while others are architects or miners . With the help of various Doozer machines and vehicles , they build elaborate constructions all over Fraggle Rock , like towers , buildings , roads and bridges . Their building materials , Doozer Sticks , are made of radish dust . Doozer Sticks are the Fraggles ' favorite snack , and they love to eat the buildings that Doozers build . The Doozers don ' t mind their buildings being eaten ; if the Fraggles didn ' t eat the constructions , the Doozers would run out of building space , and if they ran out of building space , they would have to move away from Fraggle Rock or else they would die . Doozers and Fraggles usually show very little respect towards each other . It ' s very rare for Fraggles and Doozers to make friends . Cotterpin is one of the few Doozers who likes to communicate with them . The Doozers all live together at Doozer Dome . They work together in a society that values cooperation in order to further the common good ( which is very much contrary to the Fraggles , who place a high value on individualism and independence ) . The Doozers pride themselves on the good work that they do , but no Doozer is allowed to take personal credit for their work - - that would mean that they thought their work was better than everyone else ' s , and would be destructive to the communal spirit . Competition is seen as a vice that occasionally afflicts Doozers . Again , this is very unlike the Fraggles , who love to have races and competitions , and who take pride in their individual jobs and passions . The Doozers ' diet is rarely mentioned . However , it has been mentioned that a favorite is a jelly filled food pellet ( which is never available ; they only have custard ) . The Doozer puppets and their vehicles are performed with radiographic controls , usually with the help of a waldo . Main Doozer characters on the show include Cotterpin , her parents Flange and Wingnut , her best friend Wrench , and the Architect Doozer . Nearly all the Doozers are named after tools or construction equipment . Doozer helmets come in red , orange , yellow , blue , purple , pink and white . A higher rank of Doozer is a Bull Doozer and they have a disk on their helmet to signify their rank . Bull Doozers named as such in the series are Modem Doozer and Flange Doozer . In the episode All Work and All Play Wingnut Doozer is shown to be a Bull Doozer but lacks the disked helmet in the episode The Doozer Contest In The Woozle World , Jim Henson ' s original concept and pitch for the show , Doozers were referred to by the placeholder name of " Wizzles " . Jocelyn Stevenson recalls that various names were considered , including Workalots , Drudgies , and Rgllmzaxpoops , before settling on Doozers . According to a included in the DVD , the Doozers ' construction equipment is powered by hydroelectricity generated from the flow of water from the Fraggle Pond to the underground river that leads to Doc ' s town ' s water supply . The world of the Doozers expanded beyond the confines of Fraggle - based storytelling in the form of their own animated series , " The Doozers " , adding several characters including Daisy Wheel , Flex , Spike , and Molly Bolt . Sources . _ _ NOWYSIWYG _ _