A mum decided to inject a bit of humour into bedtime by turning her daughter into a toddler-sized doll through the ingenious face-swapping app.
The mum has the doll's plastic-like features put onto her daughter's face and vice versa.
The result? What looks like toddler-sized doll holding a doll-sized baby.
It's fair to say internet users were pretty freaked out by the photo.
"This is going places. Right into my nightmares," commented one person.
"Well this is really freaking creepy," wrote another.
Creepy? Yes. But perhaps not as terrifying a recent father's face swap with his daughter.
Rather than a face swap it was more like a... nose swap.
If you can't get enough of the hilarious parent/child face swaps, here are a few more.
HuffPost Face Swaps!
Ethan Fedida and Andy Campbell(01 of11)
Open Image ModalThe HuffPost Crime and Weird News editors' facial hair matches up well -- in the most filthy way possible. (credit:Andy Campbell / The Huffington Post)
Rebecca Orchant and Julie Thompson(02 of11)
Open Image ModalThe HuffPost Taste team faces facts. (credit:Andy Campbell / The Huffington Post)
Hilary Hanson and Adam Goldberg(03 of11)
Open Image ModalDon't look into its eyes too long. It will haunt your dreams. (credit:Andy Campbell / The Huffington Post)
David Freeman and Macrina Cooper-White(04 of11)
Open Image ModalWe were gonna make a joke about the Science team... but NaH (credit:Andy Campbell / The Huffington Post)
Carly Schwartz and Nick Visser(05 of11)
Open Image ModalYou know, Nick looks pretty good in a dress. (credit:Andy Campbell / The Huffington Post)
Emily Thomas and Simon McCormack (06 of11)
Open Image ModalWeird News' morning faces. (credit:Andy Campbell / The Huffington Post)
Shane Shifflett and Kerstin Picht(07 of11)
Open Image ModalA data reporter and social expert walk a mile in each other's faces. (credit:Andy Campbell / The Huffington Post)
Tom McKenna and Jason St. Angelo(08 of11)
Open Image ModalThis is what a career in sports does to you. (credit:Andy Campbell / The Huffington Post)
Sam Wilkes and Eva Hill(09 of11)
Open Image ModalAre those bangs or eyebrows? (credit:Andy Campbell / The Huffington Post)
Hunter Stuart and Dominique Mosbergen(10 of11)
Open Image ModalThe trends team's face swap is trending! Eat your heart out, BuzzFeed. (credit:Andy Campbell / The Huffington Post)
Andy Campbell and Cat(11 of11)
Open Image Modal