Sorry to join so late. I love many of these and would buy and wear them even as just T-shirts. I do worry about the potentially antagonistic nature of some of the slogans. This was actually my topic (thing to ask everybody) when I attended the Chicago Bike show last month. What color? What slogan? etc. One interesting opinion I got is worth mentioning: If your objective is to "disarm" potentially dangerous vehicles, then your message needs to appeal to the redneck truck driver types that are most likely to wish/do you harm. The suggestion was that a patriotic display (flag) on the back was the best bet. I thought it was an interesting point.

And I might modify one to "My Ex-Wife Got the Car"
Also my favorite front license plate "3M TA3"