I often pick up clipboards at estate sales and garage sales when I see them. They are plentiful and inexpensive whether you search for them or buy them from a store, and make excellent little blank canvases for a decoupage project. When not in use, they can be hung on the wall of your office or craft room as wall art.
I've made several here that have a neutral background with a colorful accent that "pops" from it:

Besides the clipboards, you'll need the following materials:
Brayer
Scissors
Mod Podge (matte or satin)
Neutral background image and smaller colorful images.
Distress Ink and Walnut Ink for aging the images.
Buttons for embellishment.

For the background image you can click on my examples or pay a visit to The Graphics Fairy. Or perhaps you have your own piece of sheet music or other paper ephemera you'd like to use. Make sure the item has been printed or copied on a laser copier rather than an ink jet pinter, otherwise the ink will smear when you coat it with glue. You can take the printed out images to Staples and use their color copier, which is what I do quite frequently.
Next, I like to age the background image a bit by spraying Walnut ink here and there. Try it out on a piece of newspaper first to see what it will look like. I also use Tim Holtz's Distress Ink in Antique Linen and Vintage Photo around the edges to further age the paper and make sure there aren't any bright white edges showing.

This is the type of image I like for the background. Neutral and not too busy. But you might prefer sheet music, book pages, or beautiful handwriting. It's all up to you!

I coat the back of the background paper with Mod Podge, place it on the clipboard, and smooth it out with the brayer.

Next I cut out some selected colorful images. I like the florals against the neutral background, but you might want something else. Once again, The Graphics Fairy will help you out with free images!
From my collection of images I've selected some pretty roses from postcards to share with you. The pink bow is very pretty too:

Click on these images, print them out, and copy them on a laser printer:

Cut out the parts you want and apply them to your clipboard by coating the back of the image with Mod Podge:


Teacup Images: The Graphics Fairy

Once you have everything where you want it, a topcoat of Mod Podge is necessary. I like to coat the entire clipboard surface for continuity, so I prop open the clip mechanism with a popsicle stick so I can coat underneath it.

Don't the colorful butterlies seem to fly off the background? They came from a roll of wrapping paper!

I wish I could share them with you, but I fear copyright issues with the manufacturer. If you do a little fishing around on The Graphics Fairy, you should come up with some other images that are just as lovely.

My last touch was embellishing the silver clip with a couple colorful buttons using E-6000 glue. You might think of another way to decorate your clipboard. I'd love to see what you come up with!

Mitzi