And they are legion. Rachel introduces (or reacquaints you with) twitching eye, cute frog in a cone of shame, crying-blood-but-still-cool, Party Parrot, Party Parrot wearing a monocle and a host ...

Here’s how to get the same effect on your iPhone. And that’s it! Your light switch wallpaper and a cool party trick are now live. Just note that any tap on the screen will trigger the ...