Customized version of http://www.thingiverse.com/thing:116582

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=116582

Using the following options:

height = 15
grey_level = 100
cookie_cutter_dimension = 100
build_plate_selector = 0
image_file = cookie_cutter_editor_raster220141205-12199-ppi0ul-0.dat
wall_thickness = 1.6