Your help will make this task easier for all involved and is very much appreciated. Base upon a benchmark of 35 to 40 guests. 2 pounds of ice.
Some folks prefer water.
There is a water fountain near by, but perhaps a pitcher of water could be provided. Keep selection simple. Simplicity also encourages others to volunteer. Basic hospitality is the idea, visitors are not looking for a full spread. A bag of apples and a tub of apple caramel for dipping.