London 2012 torches are available from an official online auction throughout the Torch Relay, organisers have said.
The sale "not only offers fans the chance to own a piece of history but helps subsidise the cost of torches for torchbearers," London 2012's commercial director Chris Townsend said.
Sporting items used in Olympic competitions such as the baton from the men's 4x100 relay, a beach volleyball from the Horse Guards Parade competition site and tennis balls from Wimbledon will also be made available during the Games.
Money raised will be used to help stage the Games.
Millions of Oyster card users will be able to check their accounts online.
The new service is available for season ticket or Oyster pay as you go users, and allows them to look back over their journey history and fares paid.
Transport for London says passengers who register for the new system will find it easier to check that they have always touched in and out on their journeys.
It's also hoped it'll mean a simple process for passengers to download their journey history and use the information to claim for work expenses; rather than having to contact the Oyster help desk to ask for a printed journey history to be posted to them.