Olympic gold medallist Jessica Ennis said she would like to be an X Factor mentor - but Sir Chris Hoy and Bradley Wiggins are not as keen.
Sir Chris Hoy has posted photographs on Twitter of British athletes at a party last night celebrating the end of the Games.
Great Britain have had their best Olympic Games since 1908 after a gold medal haul on day 11 of London 2012.
After winning gold in the Men's Keirin, Sir Chris Hoy told the BBC:
I'm in shock and trying to compose myself but this is just surreal, this is what I always wanted - to win a gold in front of your own crowd.
You can't express the feelings I'm having right now.
He added that he was "99.9% sure" he would not be competing at Rio 2016 but is aiming to take part at the 2014 Commonwealth Games in Glasgow.
Nearly yelled myself hoarse cheering on Chris Hoy to yet another victory. What an Olympian!
@chrishoy is bloody amazing.
Sir Chris Hoy has claimed his second gold medal in London 2012 after winning the Men's Keirin final.
Sir Chris has now won six Olympic gold medals making him Britain's most successful Olympian.
Gold medallist Laura Trott's sister Emma has tweeted:
– Victoria Pendleton, speaking to the BBC
I'm just so relieved and I'm overwhelmed with emotion. I would have loved to have won in my final race. I'm glad that it's all done and I can move on.
I'm glad that it was me and Anna Meares in the final, it was the way it should have been. She was a fantastic competitor. But I'm very glad that that's the last time I will be doing that.
Laura Trott was cheered on by Prince Harry as she won omnium gold in the frenzied atmosphere of the velodrome.
An ecstatic Trott said: "I can't believe this is happening to me, I really can't. I am so happy."
The Team GB medals tally is now 21 gold, 12 silver and 12 bronze - making this the most successful Games in terms of gold medals since the London Olympics of 1908.
Victoria Pendleton missed out on a third and final Olympic gold after defeat to Australia's Anna Meares in the best-of-three women's sprint final.
Pendleton saw her first heat win overturned after a retrospective relegation and failed to defeat Meares in the second heat.
The Team GB star, who now heads into retirement, battled tears as she took the acclaim of the velodrome for an Olympic career that has landed her two gold medals and now a silver.
Victoria Pendleton has seen her opening victory in the best-of-three women's sprint final overturned, handing the opening heat to Australia's Anna Meares.
It leaves Pendleton needing to win both remaining sprint heats to claim gold.
Pendleton crossed the finish line ahead of Meares by the narrowest of margins in the first race but was later penalised for crossing the red sprinter's line during the final sprint.