Mercury
The alternate Mercury model is not quite as realistic as the first, but it may be useful nontheless.
Credits:
First map authored by Calvin J. Hamilton and NASA/USGS, and obtained from www.solarviews.com. Alternate two maps obtained from planetpixelemporium.com/planets.html.
The first model uses one map:
Ground Map: Download Page. You need the 1440x720 TIFF map.
The second model uses two maps:
Ground & Topo Maps: Download Page. You need the two maps on the page.
Download the Blender File Here
Download the Alternate Blender File Here