50p

I was first given a 'special' £2 coin from my Dad, it was the 1996 world cup and I kept it. He gave me any 'special' coins that he came across and I've always kept my eye on them, saving them, collecting them.

Olympics London 2012 came round and Royal Mint launched 'special' 50p to commerate the event. At first I couldn't be bothered because there was a lot to collect but once you get the first few that's it. What made it worse was my sister decided to collect and that was it. We weren't deliberately hunting for them just keeping an eye out and doing whatever swaps necessary to have the full collection, none of this buying 50p.

She actually got my Best Friend into it but I also think his sister was collecting them so really it turned into a sibling thing - help your sister collect.

We managed to collect them all, eventually. He on the other was short of one...