Although the Sofa Cushion Challenge idea might be unique in the world of fundraising, digging under the sofa cushions for spare change is a concept that has been around for a while.

Witness this series of photos over at the Masterfile stock image licensing website that might have been uploaded specifically for this challenge — if only they hadn't preceded it!

Still, it's a great example of how you could document the Search step of the game if you chose to go with the idea of still photos instead of a video.

Here are some links to the Masterfile Sofa Search series. Note: if you scroll down to the bottom of any given page — over on the Masterfile website — you'll see a few selections from the series in thumbnails (which you can click on) listed under "Related Images."