As the lone person who can do graphic design at work (I work in a box factory!), I make most of the event logos for the office. I practice type things and techniques I want to use on other works and freelancing here, while they choose the shirt colors and the tagline (sorry for the cheese). Not really great (especially the actual shirts because lulz our supplier sucks), but hey they make people happy.
Also, an icon of me for the company Skype.
(Filed under: embarrassing things I do at work, just below 1) failing at measuring samples and 2) team sports)