This costs £6 a month and makes a really nice present – all you have to do is type Sky mobile into google and the site should come up. You pay for the subscription via credit card so it wont show on the phone bill. Make a note of the login details and tell your gift recipient to download the free app – then all they have to do is login and hello Ashes!
It is a bit off the wall but I bought my mum a memorable mobile phone number (along with some other presents!!) for her birthday I found a really good one on ebay which was along the lines of 0777588888x for £10 and she was really pleased