Puddy_Tat
naturally fluffy
but then I thought of the Circle Line.
it's not a circle any more (although i believe UKIP made it a manifesto commitment to return it to being a circle)
the glasgow underground / subway is a circle, though, isn't it? (i've never set a paw in glasgow)
as an aside, arising from a photo being posted somewhere and a discussion about it, i found out recently that fairground roundabouts in the USA generally go the opposite way round compared to ones in the UK, presume it's like them driving on the wrong side of the road...