Like create stickers using nfc people can scan, or give people a small amount of sats to test like 21 or something when you tap it.
That's interesting, thanks! This would be very cool but I'm unsure of how to pull it off in practice. I'll add it to my ideas list 🧠
You'd be recreating the Bitcoin Fountain circa 2009 with an orders of magnitude lower payout, which is fitting. It'd be tough without some hoops to avoid abuse. I get my 'free' sats from sMiles, Ember, and ZBD -- sMiles being the fewest hoops to jump through, Ember being the most lucrative, and ZBD also being a Lightning wallet...