Now Flacco's urging teammates to adopt the look long-term (much to the dismay of Baltimore-area loved ones).
"We're keeping it because I want everybody on the offense to catch on," Flacco told WNST-AM on Wednesday. "Me and (tight end) Dennis Pitta want some people to start wearing them just to be funny, just to have fun. I mean, it's getting late in the year and we wanted to have fun with something ... and break up the monotony a little bit. Last year, I grew a beard, and this year, I just decided to do this."