This should have been a " No Brainer", and was possibly mentioned before on here but it just hit my desk today. I, like most people, are using the winter to get our ducks in a row for next cleaning season. Being on a very limited budget I look for ways to cut costs.
I inquired about getting my tailgate wrapped with a local company. His reply email was " Hi John, A tailgate is typically in the $250 range installed plus design. I might have some needs we could trade out for in the spring if you would be interested."
I did that a few years ago. Got a whole truck lettered 30 very very nice yard signs. New logo etc. I paid $200 and did his house for him.
Another idea is for people using box trucks.
You can use a large printed canvas and secure it tightly to the box truck.