MARTIANS, seagulls, marshmallows - now add Tinkerbell to Kevin Sheedy's very weird AFL history.

Sheedy's granddaughter Charlotte ordered him to dress up as the Peter Pan character for the Big Freeze 2 at the MCG on Queen's Birthday Monday, to help fight motor neurone disease.

Fans dug deep to raise over $4m for the cause, as Sheedy and 10 other celebs plunged into icy waters.

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The Federal Government announced it would match every dollar raised on Monday for the Neale Daniher-led campaign, with public donations closing in on $2.5m by Monday evening.

Former Essendon captain and Melbourne coach Daniher is suffering from the fatal disease and has become the very public face of the fight against MND.

Also on Monday, Daniher was made a Member of the Order of Australia in the Queens Birthday honours for his AFL and charity contributions.

All hands were on deck to help raise money for the cause, with Sheedy, Eddie McGuire, David Koch, Samantha Armytage, Matthew Richardson, Jonathan Brown, Matthew Lloyd, Cameron Ling, Dave Hughes, Gerard Whateley and Anthony Lehmann heading down a slide at the MCG into an icy pool.

Footy legend Kevin 'Tinkerbell' Sheedy proves it ain't easy being green. Picture: AFL Media

"My heart goes out to other MND sufferers, but they would all be overwhelmed and encouraged by the support that the community has given to the cause," Daniher told ABC radio on Monday. 

"We keep our costs down, we're a small foundation, to make sure that every dollar counts."

TV personality Samantha Armytage takes the plunge at the MCG on Monday. Picture: AFL Media

Every dollar raised goes towards raising money to finding a cure, with sponsors covering the costs of holding the event.

"It's terrible when your grandkids get you back," Sheedy said of his fancy dress.

"He (Daniher) is a superstar, always has been. He's a beautiful person, the whole family.

"It does give people hope and that's what Neale is on about."

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Geelong premiership captain Cameron Ling dons Ronald McDonald gear before sliding for a good cause. Picture: AFL Media

The day's fundraising also featured thousands of fans, most wearing the distinctive blue MND beanies, marching to the MCG ahead of the match.

Collingwood president Eddie McGuire enters the icy water fully clothed. Picture: AFL Media

AFL CEO Gillon McLachlan said he was proud of the wider football community and paid tribute to Daniher.

"You feel quite proud actually of the individuals involved leading this, but also Melbourne, Collingwood and all football supporters. I'm proud of our game and our town.

"He's got the respect of the industry. He's generated extraordinary momentum behind this cause in such a short space of time and that was recognised today in the Queen's Birthday honours list."

Lions champ Jonathan Brown cops from Neale Daniher even before hitting the slide. Picture: AFL Media

Port Adelaide chairman David Koch takes to the ice like a duck to water. Picture: AFL Media

AFL.com.au's Matthew Lloyd gasps as he reaches the surface. Picture: AFL Media

HOW YOU CAN HELP

Click here to donate to help the Cure for MND Foundation freeze MND and find a cure. All money raised goes towards vital MND research.

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