Customized version of http://www.thingiverse.com/thing:131840

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=131840

Using the following options:

tolerance = 0.2
font_scale = 2.1
word = FFGVL
helper_tabs = 0
inner_length = 140
pen_thickness = 7
font_spacing = 0.81
inner_diameter = 3.4
tip_diameter = 5.2
object = 2
lid_length = 30