Consider yourself warned — using Snapchat's newest face swap filter will guarantee you some hilarious results. People on the Internet have tried to use them, but end up seeing their face swapped with a kneecap or even food. It's the perfect combination to laugh for hours and try it yourself to see what you end up with. Check out the ones we couldn't stop laughing at ahead, and then try to use other filters on your pets or like these pros.