Awesome, in a horrible sort of way:

Unicorn barfing a rainbow.

Now you know what that saying would actually look like. (And several commenters speculated on what would come out the, um, other end. I think most people voted for "roses and glitter")

What? Don't you ever experience someone who is SO upbeat and SO cheerful on a day when you're feeling not-so that you didn't feel kind of like this?

(Eglantine hastens to add that she does NOT do that. Very unladylike, not to mention messy)