Easily create a promotional poster / newsletter to promote Scouting in one night. No computer needed.
Print off sectional logos, photos of recent camps etc, colour pens etc
Show some examples of posters and discuss what is good / bad about them. Working in teams of 2+ Scouts should create a poster to promote Scouting in their area. They can cut out and stick photos and logos from previous events / troop nights to help illustrate their poster / newsletter. Present and talk about poster once it's created.