Below you will find one clever idea for a direct mailer. Papa John's Pizza "delivered" these mailers door to door using people's peep holes as the vehicle of choice. Instead of opening up your stack of mail and finding just another oversized postcard promoting pizza, you are greeted with a surprise. We can just imagine the looks on people's faces when they look out their peep holes and see a delivery man!
Just looking at this would get anyone hungry! The only downfall, would be their vehicle they chose. Not everyone has a peep hole, but still a very effective marketing and design idea "delivered" well!