Give your volunteers an identity. It can be as simple as a name, a badge, or a specific group. We encourage our Host Teams to embrace a little friendly competition – "Our Team is always here first! Oh Yeah!, Well our team is the loudest!" Of course, anything that digresses into impromptu mid-service UFC fights is not a good thing. Ben (and I would link to his blog at this point if he had one), Ben got t-shirts made for all the Kidspoint workers.
One way I am trying to do this, is by getting T-shirts made for our trailer haulers. They'll be getting these next month. AND ONLY THOSE WHO PULL TRAILERS GET ONE!!! Hint, hint.