You can take a cab to your wedding. A limousine. A chauffeured car. A bus. A truck. A tractor. A rickshaw. A Flintstone car.
You can ride your bike! Doesn't get more eco-friendly than that. Phooey to all those who complain about their dress potentially getting dirty. So what. You're only gonna wear it once. Might as well get good use out of it.
Need a bike? Make sure you know what to look for.
Groovy, retro bikes available at Linus Bike. Found via Oh Joy.