found on CLDFX
“Choose your type of camera, you can either choose the Leica M7 or the Leica MP which is completely manual and independent of battery power.
from here everything is possible one can choose between 3 different surface finishes, whether one likes the classic vintage engraved top cover or not, if the controls should be chrome or black. The 6th step probably has the most eye catching result, here you pick the leather cladding, Leica offers 13 different materials and colors from red over to an awesome black lizard look.  After having chosen the body it’s time for the viewfinder magnification, most interesting for people wearing glasses and the bright-line frame sets. The last part deals with the personal engraving.”