I want to start a crafting group but not sure if I should provide the supplies and have them pay me at the event,, which could get expensive. Can I provide a list of items they need to bring to the meetup to do the craft? Then I can bring some extra supplies for people that might have forgotten one or two items? All events will have supplies.
Give them a list, and create a charge for the craft package of all the things that they'll need if they'd like you to provide it instead. Set a deadline that members must reserve their craft package by, so you won't overspend on supplies.