Posted this on Facebook and it reminded me that, for a casual event organiser, this really is all you need to do!
Running a fundraising event and concerned about people not having enough cash? Have a look at Givahoy. As a fundraiser, just tell me when and where is your event.
Easy as that!
Then you can let people know that they can give to your cause by just running the app.
It’s completely free, and I don’t collect any personal information from donors (beyond email address).