Some of your participants might be eager to start but are not properly equipped to safely litter pick. By either distributing cleanup supplies for participation or providing participants with a list of recommended cleanup supplies so that they understand how to properly prepare, will ensure a higher rate of success.
Some recommended items are:
Reusable buckets or feed bags to put litter into
Trash bags
Litter grabbers, kitchen tongs, or smart litter grabbers
Reusable water bottle
Sunscreen, hat, and sunglasses (if needed)
Swag (ie. hats, t-shirts, or other visible items signifying participation in the event)