RDF blows my channel away as far as organization and editing skill and only lack exposure. So it is always benefitial to everyone when two channels can get together and make videos together. It's always a blast for me to work with others who enjoy making videos.
We used their air cannon and we had a total of 3 high speed cameras and 3 HD cameras recording everything from different angles, speeds and zoom. We shared our video clips we each shot at the end of the day so we should each be able to make a handful of interesting videos. The challenge is to make each version unique so that viewers will enjoy each representation.
RDF typically uses potatoes as projectiles but also use specially-made air cannon ammo, tennis balls, and is venturing out to other odd things. You can pretty much shoot anything out of an air cannon. Potatoes are still a very good object to shoot because they pack a lot of punch and are readily available.