I found this retrospective mug on the website of the German firm it-agile. As the accompanying text says (rough translation):
“the retrospectives mug encourages you to have a mini retrospective during the coffee- or tea-break. The mug poses those nasty little questions we prefer to avoid during our daily work, over and over again:
- Why am I stuck?
- How does it work? Why?
- Does the work I’m doing now bring the project forward?
- Should I inform someone about problems…?”