create an advertising camping to sell a product. The product can be real or imaginary

Such questions need to be attempted on your own to test your creative writing skills. However, these points might help you elaborate:

Let the product be a car:

- an attractive tag line:
a) The car of the future!
 b) Sleek, swanky and suave....all rolled into one!
- features: engine of 'so many' cc, special safety features of air balloon and collapsible steering, power steering, leather seats, built in refrigerator and ultra cool air conditioning unit, folding roof, DVD player and television screen, etc
- loan available, attractive EMI offer, etc
- attractive colours 
- a celebrity face endorsing the car
- five lucky people who take a test drive get the car free
- the hoarding can have a three dimensional display that lights up at night