Customized version of http://www.thingiverse.com/thing:243650

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=243650

Using the following options:

box_height = 20
build_plate_selector = 1
box_maximum_length_or_width = 80
custom_shape = [[[-15.108665,13.315063],[-49.984974,8.760868],[-24.446339,-15.423332],[-30.892416,-50.000000],[0.000000,-33.184643],[30.892416,-50.000004],[24.446342,-15.423340],[49.984974,8.760864],[15.108676,13.315056],[0.000006,45.077072]],[[0,1,2,3,4,5,6,7,8,9]]]
tolerance = .5
box_top_height = 10
box_shape = 2