fan.gco is the printable fan shroud for the 25mm fan on the platform.
It isn't necessary, but is a printable add-on, something fun to print
on your machine!

blinky.gco is the Blinky Eye token we print and send with your machine.  You can
download the original from http://repables.com

vase.gco is another sample print we use on your machine.  It is from thingiverse.com, 
and can be downloaded from the link http://www.thingiverse.com/thing:18672

ENJOY!