After hearing about people successfully traveling on Principality of Sealand passports, I did wonder how far you could get round the world possessing documentation from a completely fictional country.

>This is not the first time that passports from Sealand have found their way into the news. One was found on the killer of Gianni Versace, Andrew Cunanan, and he was said to have a car with Sealand diplomatic plates. In 1997 forged Sealand passports were used to launder drug money in Slovenia, and there were reports that 4,000 forged passports were sold at £1,000 a head before China's takeover of Hong Kong. People involved in an illegal pyramid-selling scheme in eastern Europe had Sealand papers; one had border stamps from Libya, Iraq and Iran.

https://www.theguardian.com/theguardian/2000/mar/28/features...