So many! Probably "Pools"

Pools are a bit like SN Territories, in that anyone can create a Pool and curate their favorite projects on Geyser and projects can apply to be part. This is a cool use case for organizing projects of similar types, and allowing the community to do so. This will help Bitcoin Film Fest, for example, to curate all their certified Bitcoin films or Mi Primer Bitcoin to verify all their NodeNetwork nodes.

Another big one is Credit Card payments. Imagine if you could pay a campaign with credit cards, and the funds are swapped over and sent to a user's lightning address!

Final one is Memberships, which can flip subscriptions on their head. Rather than asking for people to send funds on a monthly basis (who wants to do that, ugh) to get access to a community. Creators on Geyser could create membership plan based on how much each user had sent on Geyser. So they can create exclusive hidden content, give special discounts to those who enter those tiers.

Ok finally, since you ask, one more: Heroes. Heroes are users who are sharing a project and enabling transactions to happen. We use referral codes, so that any Geyser user sharing any project could become a hero. We then create a leaderboard tracking the top Heroes. No monetary benefit just pure signaling and recognition. After all, Heroes help Bitcoin Adoption happen faster! We lov'em!

Lot's to BUIDL.