In the past, I have noted that teams have used physical objects as a reminder or used them as an honor, or as a form of shame.
I recently learned that this tradition exists in Microsoft outside the software development world. At least in one part of the Finance department, they had a hat that had the word “Hat” printed on it. If you said something totally obvious in a meeting, you had to wear “the hat”.
Raymond has been involved in the evolution of Windows for more than 30 years. In 2003, he began a Web site known as The Old New Thing which has grown in popularity far beyond his wildest imagination, a development which still gives him the heebie-jeebies. The Web site spawned a book, coincidentally also titled The Old New Thing (Addison Wesley 2007). He occasionally appears on the Windows Dev Docs Twitter account to tell stories which convey no useful information.
My experience is that what is Totally Obvious differs between people. It it better to risk wearing the Hat than risk withholding critical insight.
I would end up with this hat in every meeting