There is a great lesson that 'could' evolve into a "Super Graphics" for U Haul if things lineup just right. My students have assigned local features/stories and chapter/textbook items over the years. Many of them have been cool, they are not really super artwork but the ideas are very neat. See if your student's can come up with features/stories from your parish or chapter/text ideas.
The web links about should give them some ideas or hints. I have also included a copy of the "Louisiana" trucks Super Graphics just to give your students another item to work on.