We have way too many mugs but these are notable. My mother used to pick up mugs from local craft fairs and these were two I kept from her collection.
We have mugs from some, uh, unusual federal sites. I got the CDC mug for giving a pre-conference lecture there. Sorry, hard to read the lower right but that is from Camp David, the presidential retreat.
This mug has seen some adventures in the past 25 years. It has a rubberized bottom and survived a several-block trip on the roof of my car. Eventually I figured out that the driver next to me was not being rude, he was letting me know I was about to lose a coffee mug.
The mug also survived a car crash that caused several thousand dollars worth of damage without spilling a drop of coffee. 
