THE 24th McHappy Day is set to be a cracker on Saturday, with the five Gladstone region stores geared up for a day full of fun, fundraising and festivities.
Gladstone City McDonald's store will be decked out with all things superhero, with volunteers and crew members dressing up as their favourite character.
It's all for a good cause.
McHappy Day is aiming to raise $3 million Australia-wide, and McDonald's licensee Tony Ward encourages Gladstone's residents to dig deep.
"We want to contribute as best we can for the target," he said.
"We know Gladstone has many many young families with kids and we hope they get out to our stores and enjoy the day and raise funds."
Mr Ward said there would be a buzz around all the stores.
"We have a number of local political figures, several fire trucks will be at some of the stores and there will be Harley Davidsons at the Calliope store," he said.
"We have a couple of old restored tractors that a local person has donated for Calliope. There will also be an American pick-up truck."
A number of motorcyclists are expected to show their support, too.
"Motorcyclists really get on board with these sort of things. I am anticipating strong support from the Gladstone motorcycling fraternity," Mr Ward said.
McHappy Day is close to home for some Gladstone residents, with 86 families from the region using the Ronald McDonald houses in south-east Queensland in 2014 alone.
The other store themes are jungle at Kirkwood and sporting at Kin Kora.
McHappy Day kicks off at 10.30am on Saturday.
Two dollars from every Big Mac sold will go towards Ronald McDonald House, or you can make a donation.