Probably done before (though I don't remember it), but how many players have played in the League of Ireland and in the World Cup? I don't want to include either (a) Irish players or (b) players who ended their career here for easy money. Preferably players who played here before playing in the World Cup.
Avery John is the obvious example - Trinidad & Tobago and Longford/Bohs/Pat's (?). There's also Dave Norman - Canada (1986) and UCD (1983-1985).
Any others spring to mind?