I'm posting a few pictures from 5th grade RTI where we're researching pollen and enlarging the pollen grain from a 3D microscopic image. There are some amazing colors, shapes, and textures on those lil guys that make us itch and sneeze. Here are the links we used below, micronaut.ch makes prints and sells these to medical professionals, etc. Check out some of their other microphotos!
http://www.micronaut.ch/product-category/pollen-sem/
http://www.amusingplanet.com/2011/03/pollen-grains-under-microscope.html
I'm also including their plant and animal cell research and watercolors!