What's the best - or worst - item of memorabilia in your possession? Perhaps you're the person who spent £1,605 on a huge Tunnock's teacake costume, fresh from the opening ceremony of the Commonwealth Games. There are more available on the Games' official auction website, which is also offering a variety of other props, including fishing boats, an Edinburgh cannon, and even a flushing toilet (current bid: £51.00).

Or perhaps political memorabilia is more your bag? Imagine how much a UKIP necklace, made from Cornish Pewter, will be worth in twenty years' time, when UKIP are the ruling, and indeed only, political party.

We'd like to hear about - and see - your own items, as naff, impressive, or impressively naff as possible. Perhaps you have a full set of royal mugs gathering dust in the attic, or have a huge amount of Doctor Who related items. Or maybe, like me, you find yourself the proud owner of a Viz tea-towel.

You can share your images of your magnificent tat via GuardianWitness, or tell us about it in the comments thread below.