Kids, parents and members of the toy industry are being urged to "Do something funny with Jelly" for charity.
The In Thing has teamed up Izziwizzi kids to donate Gelli Baff and launch the campaign in aid of Comic relief.
This will encourage parents and kids alike to get involved with Play Fest by creating videos of themselves getting messy, using a Gelli Baff fundraising kit, before uploading the videos to the Izziwizzi Twitter and Facebook pages.
From Friday, February 8th to Friday, March 15th, the companies would like to see as many people as possible getting involved.
“We’re proud to be involved with such a large charity project, getting hands-on with some physical activity," said The In Thing's head of marketing Kieran Murphy.
"Comic Relief has grown into such a respected and iconic organisation and we welcome future projects together. We encourage people to get involved and join the fun, all for a fantastic cause."
Izziwizzi Kids founder Al Boxall-Gordon added: "The exciting news this year is because we've grown you can get involved in the fundraising too."
Simply click here to find out how you can get involved and receive your free Gelli Baff fundraising kit.