Ricochet the dog, also known as "SURFice dog" after surfing with kids with special needs, has been pictured with another dog called Rina as part of the challenge.
Both dogs are trying to pull off the best prank with an elf and have been caught getting up to some serious mischief.
Since the beginning of December, the dogs have been pictured separately in the midst of their Elf On The Shelf pranks.
Here's how they have been doing. Warning: It gets quite brutal.
Rina with silly string.
Ricochet playing elf bowling.
Nina with jump leads (poor elf).
Ricochet making one elf very dizzy.
Nina put an elf in a hamster ball.
Ricochet and the chia elf.
Nina toilet fishing.
Ricochet makes elf tacos.
Nina with elf in the dog food.
Ricochet giving elf a lesson in weight training.
The pair also decided to join forces on a few occasions...
But the elf got them back...
Ricochet has interacted and surfed with kids with special needs, people with disabilities, and veterans with PTSD since 2009. He and his owner have helped to raise nearly £270,000 for human and animal causes as detailed on their website.