This is just a quick little trick that my friends and I discovered a while back, and I decided to show all of you guys!
Step 1: Snapchat
Log on to Snapchat and choose your victim. In my case, it's Sven the reindeer. Take a picture like you normally would in Snapchat.
Step 2: Negativity
Now place your thumb on the screen and slide to the left. A text box should appear. Type in this phrase exactly: Negative...
Step 3: Done!
Now you can save the photo to your IPod or send it to a friend! If you invert a photo, show me in the comments.
Fire will catch!