Are you a mobile detailer?
I used to spend hours and hours delivering colorful flyers, and giving away free washes & waxes to the local radio station so they would say my name on the air. Neither of these "marketing ideas" worked all that well.
If you're gonna spend the time to rustle up business, try this:
Search out the coolest car you can find in a busy area. Offer to do the car completely free, for maybe a month or two. Show up on time, perhaps even set up a sign. The idea is to keep that car DIALED, and to be seen CLEANING it.
I can assure you that you'll be seen and so will that car.
After a couple weeks, people WILL stop to ask questions, and check out the work.
You can either beat the streets handing out flyers and knocking on doors, but all sorts of people do that. Plus, it doesn't really show off your abilities, does it?
This other idea DOES just that. Good luck!

eace: