If you want your non profit fundraiser to be a success, you need to choose something that the members of your organization can be excited about. Have a meeting for everyone involved in the non profit fundraiser and discuss your options. You'll get a feel for which ideas are more popular than the others, and this can help you set up a situation where your sales team is enthusiastic about their product, which of course will help the sales for your non profit fundraiser go way up.
At your meeting, it's probably a good idea to come to the table with a few tried and tested non profit fundraiser ideas, and as well a few new ideas that people might not have heard of. That way, if people are bored with the older fundraisers, you have some fresh ideas you can present, or if you get the feeling that people would prefer something more stable and reliable, you'll have the more classic non profit fundraisers ready to go, as well.
Non profit fundraisers don't need to be boring, and the truth is that your fundraiser is actually more likely to be successful if your group is excited and enthusiastic about what they've chosen. As long as you choose a fundraiser that suits the size of your group and your monetary goal, and keep everyone excited about it, you're sure to have a non profit fundraiser that is a raging success.