I think we need to be cautious in the sign creation department - and while I would prefer to see something in the form of at least a template - and sooner than later - I think the message on the sign, the layout, the logo, all needs to be consistent.
I can't argue with any of the sentiments posted as proposals, but I also believe the branding and message needs to be consistent from event to event, car to car, racer to racer. When that occurs, then our personal stories and viewpoints will have a greater impact with those we interact with.
I maintain this task should be farmed out to somebody less busy, but I also believe it should move forward quickly and with an approval from STS.
A boatload of home made signs will make us look like an angry mob - and in a lot of ways, we are. But a consistent logo and message will make us look like a well organized angry mob, and that's the group that I think will likely be more effective.