Customized version of http://www.thingiverse.com/thing:2545312

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=2545312

Using the following options:

sides = 0
initials_size = 10
height = 50
wallthickness = 3
basethickness = 3
margin = .4
logo = yes
diameter = 60
nubs = yes
initials_depth = 1
initials = CS
$fn = 100