Customized version of https://www.thingiverse.com/thing:3785968

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=3785968

Using the following options:

holder_radius = 65
holder_thickness = 3
holder_height = 30
tube_bottom_thickness = 1
pen_count = 25
pen_radius = 6
pen_length = 150
rotx = 35
rotz = -40