In the early 2000s I did a bit of consultancy for a company that'd done a deal with Nicaragua's NIC to offer ".co.ni" domains to businesses in Northern Ireland (at the time, the commercial second level domain in Nicaragua was .com.ni, so there wasn't a conflict with existing use).

Unfortunately the venture failed (and I went unpaid!), but the Nicaraguan NIC stepped in to continue service for the handful of .co.ni domains that had been registered at that point.

There'd been a similar effort for Scotland, using both .co.sc and .co.al (for Alba, in Scots Gaelic), but it was even less successful.

These days, there are gTLDs with .scot, .cymru, .wales, and .london existing since 2014-ish. There'll be another round of gTLD applications next year, so I suppose someone might register .unitedkingdom or .ukogbani, but the domain name goldrush days are long over...

Hail our ukogbani overlords.

Sorry to hear you didn’t get paid.