Check this out! Keep in mind THIS IS NOT MY PHOTO...but rather one I ran across on this little thing we call the world wide web.
There is a whole set of these pictures which you can view on Flickr here. (There's also a short description of how the photos were made and a link to more in depth "directions".)
I bet shooting these is a blast...messy...but let's be honest, a lot of really fun things have a messy side to them. Enjoy the view!