There is no right-and-wrong absolute formula for selecting the right kind of fundraiser - all you need to do is take some things about your situation into consideration, and make decisions based on what will work best for your fundraising team.
Think about your target market, the people you plan to sell to. Will your Christian organization be fundraising directly in the church, selling things and taking donations from the congregation itself, or will you be appealing to the wider community? Part of successful Christian fundraising involves knowing your supporters and what they will like, and choosing a fundraiser accordingly.
If you can aim your activity or chosen product toward the people you're most likely to be approaching, then your chances of success fundraising for Christian groups will increase dramatically. Choosing the right activity or product also has a lot to do with your monetary goals and how quickly you need to reach them.
If you are just trying to raise money for a trip or some moderate expenses in your church, then something like candy bars or scratch cards can work really well. On the other hand, if you're trying to raise a more substantial amount of money, then you may want to try a multi-tiered effort that attacks the issue from several directions.
Fundraising for Christian groups can include regular fundraisers, fundraising events, letters that you send out to known supporters, or anything else you can imagine. There is no end to to the ways you can organize your effort, and if you check out our pages of fundraising for Christian groups, you can get started with some fantastic ideas that will really get the ball rolling.