I think nostr:nprofile1qyfhwumn8ghj7ctvvahjuat50phjummwv5qjvamnwvaz7tmvde3zucn0d3mx2untv4ezucm0d5hkummnw3e8yetvv9uj7d3kxcqzqe57h0xv7sy7upr85vmxpt5gl5t72du7v3hyr47zxml5jclncd4ks2s8sn is probably the best representation of micro payments being used internationally
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Also lightningcats.io
It's quickly becoming an evening ritual for my kids and I to "feed the cats... AND THE GOATS"