I don't change as frequently as Gary, but often. Usually in response to some forum related event. Almost always a Homer Jay Simpson since earning my CT.
I have used many over the years, but I have settled on this one I created that is simply a JR which indicates Jayaruh (Jay Ar-uh). The green is my favorite color.
My avatar is slightly misleading. My screen name is Stingraysrock. The screen name comes from my experience with the interaction I had with stingrays off the coast of Grand Cayman Island in 2003. The avatar is a picture of the emblem off the Stingray Corvette.
Mine's a Gorilla hand pulling a driver out of a bag of clubs; I compete in Long Drive for fun and my nickname on the grid is The Vanilla Gorilla.
Just a happy shavin guy. I always try (fail sometimes) to be positive, say thank you, practice basic courtesy and most of all count my blessings. To much negativity out there. My dad always said if you think you have it bad just look around.
I use to be a strictly boar brush user, now I have more badger and then synthetic. I don't bother changing because I figure it easier for people to remember.