Name: David Reinhardt

From: London

How long have you been collecting? About 10 years

How many pins do you own? A handful of hundreds

Up until this Summer Games, pin collecting had been something I did to pick up a relatively portable souvenir. In the run-in to London 2012 I got engaged in the community through London Pins and decided to wait until I'd tried this trading malarkey before selecting a favourite story.

The most notable experience I had during the Games was undoubtedly the conversation I had with the South African Paralympic team doctor. On noticing the name on his accreditation - I asked him about it. We did a "name dropping dance" and - after introducing grandparents into the conversation - we worked out a link. Turns out we were distant cousins!

It's just a reminder - even on the world's greatest stage, you can never forget your roots. All that, just because of pin trading.