The Principality of Sealand has no monopoly on nutters. Australia has a few of her own.
There is the Principality of Hutt River which "officially" seceded from Western Australia in 1970.
Then, in 2004, we witnessed the formation of the Gay & Lesbian Kingdom of the Coral Sea Islands whose 100% homosexual population lives in its capital Heaven, a campsite located on Cato Island at the centre of its territory which is scattered over some 1 million square kilometres of ocean northeast of Australia at 18 00 S, 152 00 E.
Anybody interested in forming the Republic of Retired Accountants? I know a well-balanced place!