(Online or instore^^)
You can get this ones from Schuh if it's the sort og thing you are after:
http://funadvice.com/r/3k6o700vko
I bought mine at a store called Journeys. Im not sure if the UK has that store but you can try :)
Check out Ebay, I got some for £40... a bit pricey but they could have gone down xD