If newbies are invited I'll bring some non-alcoholic drinks (as the alcoholic drinks appear to be covered).
Possible suggestions:
Water, milk, Yoohoo in flavors, drinks that must be good for you because they are labeled "sport" even though they have higher sugar content then soda, apple juice, orange juice, mango juice, prune juice, plum juice, vanilla milkshakes, chocolate milkshakes, asparagus milkshakes, mistletoe sap and milk from a pure white cow mixed with a crystal asthame, Earl Grey tea mixed with sugar and honey with a spoon bent by James Randi, or maybe some canned soda.