Use the Puzzle Shaker app to make a puzzle of your own pictures / photo's. Take a picture (or open one from your device) and shake it to create the puzzle pieces. The more you shake it, the more pieces you'll get.
You can start easy with just four pieces, or make it more complex. This free version allows you to create up to 16 pieces. The full version goes up to 100 pieces for a real challenge!
Addictive and fun for both children and adults, so have fun :)
Comments and ideas for improvement are welcome. Proud of your results? Mail me a screenshot and you might end up in the example screenshots in the Android Market...