With the time allowed, what if some of the men built a float to be pulled by a tractor. The float could have a couple of buildings, some roadway, and even a small quarry for some r/c construction equipment. The trucks could drive around on the float and be viewed from all angles by the public and a banner could easily be mounted overhead to announce the name of the club and website for the group. The only person you need to agree upon is who drives the tractor to pull the float.
Just a thought...
- RCT