Seen this bad boy myself in the BBC news this morning. Im on the lookout for the circulated version but being from NI, it takes a few months before they make there way over here.

Top tip, if you put £1 into a vending machine and request your change back, it normally gives back x2 50p's. If you mark one of those 50p's, you can keep refeeding them into the machine until its come back round. This is also a good way to kill 5-10 minutes in a staff canteen are train station :D Ive got some really good 50p's using this method