As a non-profit community that blogs about new / servant leadership we also organize IRL events. With Jgive we have found a component with which we can both handle our donations and we use it for subscriptions to events (where the subscriber decides what the event is worth for him / her). Been working with their support team on some issues and they where very responsive and open for new features / improvements.
If you are looking for a donation / crowdfunding component: (j)give it a try! you won't be disappointed.