I don't know... It'd be pretty hard to distinguish the Norwegian Ski Infantry and Jamaican Bobsled Infantry...
I wish I had planned an April Fools civ. There's so many to choose from... Arthur's Britons... Madanach's Forsworn... São Tomé and Príncipe...
I like the idea of a Monty Python and the Holy Grail's Britons led by Arthur, king of the Britons. That'd be great.