One of my prefered objects for microscopy is the Tradescantia plant (with 71 species !). Very interesting is the fast movement in the cells of the stamen hairs. The stamen hairs are made from a chain of single cells ( http://scidiv.bellevuecollege.edu/rkr/B ... closis.pdf ).
First picture: the surface of the stamen hair cells
second and third picture: the cyclosis in the stamen hair cells
Images made through a microscope. All subject types.