For my Mold Series I used different types of mold and bacteria plates that I ordered from a lab. I then took air, dust and bacteria samples on each plate, then I let the mold grow. To photograph I placed each dish on a white light table.

The entire series is on my site: http://web.mac.com/jodabaum/JBportfolio/Gallery/Gallery.html

In the Microbial Apparatus photo essay.