London Marathon: 10 of the wackiest world record attemptsPublished22 April 2017Image source, Guinness World RecordsImage caption, ...Like Paul, who loves helicopters so much that he's decided to wear one for the run! It's a pretty heavy costume, so Paul's had to carry extra weight in training to get used to it. He's hoping to break the Guinness world record for "Fastest Marathon Dressed as a 3D Aircraft (Male)". He'll need to finish in less than six hours to beat the current record.Image source, Guinness World RecordsImage caption, Susan's costume is a bit lighter at least - she's decided to style herself as a roll of loo roll. Believe it or not, she's not the first to pick this costume, so she needs to run the marathon in less than five hours to take the prestigious title of "Fastest Marathon in a Toilet Roll Costume (Female)".Image source, Guinness World RecordsImage caption, Gemma has gone for something a bit classier - she's dressing as the famous Mona Lisa painting. It looks great, but adds an extra challenge to running because she can't use her arms! If she makes it round the course in less than four hours and 25 minutes then she can proudly claim the title of "Fastest Marathon as a Framed Portrait (Female)".Image source, Guinness World RecordsImage caption, Meanwhile, Gemma is branching out from her usual running gear, with this impressive costume of a tree. Her time to beat is six hours. She's asked people to sign leaves that she can attach to the canopy, which will give her some extra support on the day.Image source, Guinness World RecordsImage caption, And is this another traitor from the Imperial Army? No, it's just Jeremy - he's making the run in full Stormtrooper armour in an attempt to take the record of "Fastest Marathon Dressed as a Star Wars Character". He's got four hours, 59 minutes and 59 seconds to beat...Image source, Guinness World RecordsImage caption, Almost as awkward as armour, Damian has decided to ditch his trainers and do the run in his trusty Wellington boots. Maybe they'll come in handy if there are any muddy patches along the track? To get the record, he needs to reach the finish line in less than three hours and 15 minutes.Image source, Guinness World RecordsImage caption, But not everyone is going it alone - Alex and Chris are going to need pretty good teamwork to win the title of "Fastest Marathon in a Two-Person Costume". They're dressed as a Jamaican bobsled in tribute to one of their favourite films - Cool Runnings. Alex says he's always wanted to run a marathon with his best mate, so that they could share the moment together. To get the title, they'll need to be faster than three hours and 59 minutes.Image source, Guinness World RecordsImage caption, But they've got competition! Michael and Marc are going for the same title, and they've got the power of the Batmobile to help them out. So the question is - what's faster? A bobsled or the Batmobile?Image source, Guinness World RecordsImage caption, Meanwhile, Simon, Caroline, Jacqueline and Steve have doubled that challenge with not two people, but four! They've opted for an aeroplane costume, which makes sense since they've all worked on planes, as pilots and cabin crew. They'll need to beat five hours and 20 minutes to get the record.Image source, Guinness World RecordsImage caption, And finally, with the biggest team of the lot, David, Meg, Ceyhun, Andy, and Holly are running as a team of five, in Scooby-Doo's Mystery Machine. They're aiming to be quicker than five hours and 45 minutes to claim the record of "Fastest Marathon in a Five-Person Costume". Good luck, everyone!More on this storyComments: Your good luck marathon messagesPublished23 April 2017Tim Peake breaks space run recordPublished25 April 2016Newsround rocks the London Marathon. Video, 00:01:31Newsround rocks the London MarathonPublished23 April 20121:31The man who ran 401 marathons in 401 daysPublished5 October 2016