My newest Twitter account is Data Privacy (@data_tip). There I post tweets about ways to protect your privacy, statistical disclosure limitation, etc.
I had a clever idea for the icon, or so I thought. I started with the default Twitter icon, a sort of stylized anonymous person, and colored it with the same blue and white theme as the rest of my Twitter accounts. I think it looked so much like the default icon that most people didn’t register that it had been customized. It looked like an unpopular account, unlikely to post much content.