Identify and membership
NFTs are public via wallets so they can highlight a participant's commitment to a cause. As keys or membership cards, they can also transfer easily amongst family members or corporate employees as needed.
Many platforms allow users to login and access services via NFTs instead of traditional accounts. Fundraising organizers can easily gate access to their cause or project to NFT holders.
NFTs have value as a piece of art and as a collectible. But they're also something participants can sell to others as value changes over time.
Value for participants
Low cost to create (digital; just a piece of art sitting on a blockchain)
Engaging & customizable
NFTs spur participant engagement vs. just asking for money. They are also customizable. You can set them to be transferable or not, define how long they’re valid for and upgrade them over time.