Having a bad hair day? Wearing your fat jeans? Just having one of those days when nothing seems to fit or look right? If you live in Washington, D.C., you might want to take a stroll by this compliment machine. Put in place as an art installation, the machine -- really an iPod Nano tucked inside a box -- lets passersby know that they're appreciated through a rotating set of 100 comments.

Sure, the compliment doesn't always fit, but spreading a little sunshine can never be a bad thing, right? You look great today...now pass it on!