Customized version of http://www.thingiverse.com/thing:78719

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=78719

Using the following options:

hole_diameter = 0
lithophane_border = 0
number_of_layers = 12
hole_border = 0
image_file = lithopaneatoz20130506-17918-xi6y7r-0.dat
layer_height = 0.2