I have "FAN4WDW" on my plates. It's surrounded by a Disney Vacation Club plate cover, and there are annual pass and DVC magnets right next to it. Even so, I can't tell you how many times people in parking lots have asked me what WDW stands for.
We keep thinking about getting a personalized DVC related plate. But now we own three DVC resorts and we can't figure out how to put them all on the plate with the limit of 7 letters - DVC3HMS, DVC0509, DSNYHM, maybe we should go with ALOHA13 as we bought Aulani in 2013, but then we are ignoring our WDW home resorts of BLT AKV. What we need is multiple cars--one for each resort! LOL It is even funnier since we downsized to one car in 2011. We just weren't using both cars that much since we retired and travel more.