I think an "ecomodder.com" sticker and a QR code are plenty. If you don't have a smartphone (I don't) you can always write down or photograph the URL. To be honest though, the EM sticker is probably the
last thing people notice on my car.
Anyway, if you're going to do this, something less confrontational would be nice. "Wrench Smart. Drive Smarter. Save Fuel," is good.
Feel free to use pics of my cars if you like. If you're having trouble downloading one, PM me.
The Anal Probe
Ren