Customized version of http://www.thingiverse.com/thing:308109

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=308109

Using the following options:

number_of_layers = 26
boarder_thick = 6
shape = 1
image_file = keychain-customizable-lithopane-mark1-420150611-25877-sucus8-0.dat
layer_height = .3
boarder_width = 3
tag_size = 54
ring_hole = 4.5