Hey Alex! 

The Bushido of Bitcoin by  nostr:npub1dtgg8yk3h23ldlm6jsy79tz723p4sun9mz62tqwxqe7c363szkzqm8up6m is a great example of the type of Rewards you can sell on Geyser.

Get your friend over here, so they can experience the power of Lightning, Bitcoin and Nostr!

https://geyser.fund/project/bushidoofbitcoin