The Register regularly does piss-take articles about this and even provides a handy conversion calculator.
http://www.theregister.co.uk/Design/page/reg-standards-conve...
http://www.theregister.co.uk/2007/08/24/vulture_central_stan...
http://www.theguardian.com/media/mind-your-language/2010/may...
http://en.wikipedia.org/wiki/List_of_unusual_units_of_measur...
I like the one suggested in the book Good Omens by Neil Gaiman and Terry Pratchett, of measuring faith in Alps.