You may not believe this but the son of my friend asked me to identify a small (about 2mm) particle that came out of his nose when he sneezed. I took some micrographs and macros to get a look.
Macro lens on camera
http://www.shuttertalk.com/forums/at...t.php?aid=1201
75x microscope
http://www.shuttertalk.com/forums/at...t.php?aid=1202
http://www.shuttertalk.com/forums/at...t.php?aid=1203