Radio Flyer is Teaming up with First Lady Michelle Obama’s campaign to fight obesity. According to their press release:

Which autographed scooters will get your bid? Nearly 40 celebrities have signed a new Radio Flyer Style ‘N Ride Scooter for an online charity auction. Will you own a scooter signed by Demi Lovato? Cameron Diaz? Mark Wahlberg? Ashton Kutcher? Or one of the Black Eyed Peas?

100% of the proceeds will benefit Partnership for a Healthier America (PHA) created in conjunction with – but independent from – Let’s Move!, and is supported by the honorary chair, First Lady Michelle Obama. With this auction Radio Flyer and PHA team up to encourage more active, outdoor playtime in effort to win the fight against childhood obesity. We invite you to participate in this auction and to join Radio Flyer in their pursuit to make every childhood healthy and memorable

Different celebrities item go up on different days. Here is the current schedule (subject to change)

October 3-13
David & Lorenzo Henrie, Nikki Reed, Kat Graham, will.i.am, Jason Bateman, Tyler Blackburn, Quinton Aaron, Khloe Kardashian & Lamar Odom

October 10-20
Taboo, Maria Canals Barrera, Grey Damon, Cameron Diaz, Charice, Rebecca Black, Chris Hemsworth, Joel McHale

October 17-27
Printz Board, Stefanie Scott, Boo Boo Stewart & sister Fivel, Madison de la Garza, Maggie Q., Lucas Neff, Mark Wahlberg, Tyra Banks

October 24-November 3
Apl.de.ap, Sterling Knight, Francia Raisa, Sean Kingston, Michael “The Miz” Mizanin, Ashton Kutcher

October 31-November 10
Fergie, Demi Lovato, Kellan Lutz, Malese Jow, We Are Th3 Dorks, One Republic

Check it all out at their EBAY store