There are 2p and £2 coins[1], but sadly all currency must have the monarch's head on the obverse; a second head on the reverse would probably be unwelcome. [1]

There are 2p and £2 coins[1], but sadly all currency must have the monarch's head on the obverse; a second head on the reverse would probably be unwelcome. [1] They're quite beautiful: http://en.wikipedia.org/wiki/Two_pounds_(British_coin) http://en.wikipedia.org/wiki/Two_pounds_(British_coin)