Columbian artist Maria Adelaida Lopez's "Dust Houses" consists of cardboard doll houses covered in household dirt and dust from vacuum cleaner bags. The material was easily available when she had to clean houses for a living as she worked her way through her master's degree in art in Philadelphia.
The Dust Houses stemmed from her "Housekeeping Project" and is in keeping with her domestic theme and, as Lopez says, "the ideas of cleaning up after oneself and putting one's house in order."
Lopez has since moved on to Miami, where she continues her art and teaching career. She no longer has to clean houses, so her source material is now given to her!