Each LaunchGood campaign has Giving Levels that a donor can choose to support a campaign.
As a campaign creator, you don't need to add a Perk. Instead, you can add a description that highlights the impact of each contribution or you can simply add Giving levels at different amounts to give donor's easy options to choose from.
Offering perks in exchange for support is conducive to pre-sale and entrepreneurial campaigns. For other types of campaigns, Giving Levels can be just as effective by highlighting the impact of each contribution.