They plan to be at Huish Park, on 10th October at 12:40pm. Join them with the Jolly Green Giant.
The Mighty Mariner and Poacher the Imp will be travelling to each Premier League and EFL ground in four days along with James Whaley, who has raised over £10,000 for Demi.
Andy Carr, the Grimsby Town mascot, and Edward Brett, Poacher the Imp, will be joined by fundraiser James Whaley, who recently biked between the two clubs’ stadiums raising £10,000.
They hope to raise at least another £10,000 for the young Louth girl who is undergoing cancer treatment.
Whaley was planning on taking a break from fundraising after his bike ride, but couldn’t turn down this opportunity.
Whaley said: “As soon as Poacher suggested the idea, I was up for it, and we quickly got the Mighty Mariner involved.
“Since I’ve started fundraising for Demi, I have made some sacrifices, but it’s the least I can do, It’s completely worthwhile.
The journey is planned for October 8 to 11, and the JustGiving fundraising page is now open.
Grimsby mascot Carr said: “When I met Demi and her family, they had my heart instantly. If I was ever in a situation like that, I would hope people would help me.
“If we can do our bit and raise money in a fun way that will get people interested, I will be happy. We’re hoping that it will capture the imagination of a lot of football fans.
The team are trying to get other clubs from around the country involved as they visit the many grounds, and the mascots are hoping to meet many of their counterparts.
The group is appealing for help with their trip, including a motorhome to make the journey easier and contributions for the fuel it will take to criss-cross the country.
Demi’s condition appears to be improving following experimental treatment in America. She was diagnosed with cancer for the second time earlier this year, but recent MRI scans have given the family hope.
It is costing her family £500 to fetch medication from Poland and Texas putting a huge strain on their finances.
Their supporters have raised £79,000 of their £205,000 goal according to their GoFundMe page.