Finally, tonight, two sisters and their decades-long mission to spread some holiday joy. Mara and Kayla Winfrey know a lot about sharing the spirit of Christmas. After all, they've been doing it for 20 years since they were just two and four years old. With hot chocolate and warm wishes, their tradition lives on, selling hot cocoa out of their family's garage in Homewood, Illinois.

Our neighbors just expect it now that, Oh, yeah. What day is it? They start asking us in October.

All the money they raise goes to the Marine Corps's Toys for Tots. Mara and Kayla's Hot Chocolate stand raised $50 the first year, and it's been growing ever since. Last year, they raked in a cool $11,000.

We've been blown away with what people have offered.

The stand is a true family effort. We hope not to run out. That's their Ma Maureen, using two large pots to serve up her secret hot chocolate recipe. The stirring is important. You have to add the vanilla at the end. Meanwhile, their dad, Dave, is considered the workerbee, helping out wherever he's needed.

Very proud of him. I think it's their way of giving back and paying it forward.

Soon after the donations are in, Mara and Kayla go shopping, selecting a wide range of toys for children in need before handing them all off to the Marines for distribution. I don't.

Think we would have ever expected at four and two that it would grow to this point. It's turned into a great tradition not only for our family but for our community.

Warm the tummy and heart.

Hi, everyone. George Stephanopoulos here. Thanks for checking out the ABC News YouTube channel. If you'd like to get more videos, show highlights and watch live event coverage, click on the right over here to subscribe to our channel. And don't forget to download the ABC News app for breaking news alerts. Thanks for watching.