The Moon
The moon is the first thing anybody looks at because it has a wealth of detail and some interesting features that can be resolved even with small telescopes. Additionally, the moon can be eclipsed or can eclipse celestial objects. This is called an occultation. Below is some imagery of the moon that includes eclipses and occultations.
Lunar Eclipse Mosaic October 27, 2004
Pleiades Occultation April 1, 2006
Pleiades Occultation July 20, 2006