Customized version of http://www.thingiverse.com/thing:59933

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=59933

Using the following options:

_labelHeight = 8
_labelText = Mon
_overhangAngle = 45
_minimumWallThickness = 1.0
_labelDepth = -0.3
_insideDiameter = 25
_partGap = 0.5
_labelFont = write/letters.dxf
_labelRotation = 0
_bottomThickness = 0.8
_interiorHeight = 15
_lipHeight = 2.4
_rounding = 8
_bayonetDepth = 0.6