Developer Roman Reyhani let us know his app, You Shake iLaugh, is currently free in the App Store for a limited time. If you're not familiar with the app, Roman says:
This app was inspired largely out of a feeling that we need more laughter in our lives, instead of the gloomy outlook we're often fed. So this app hopes to achieve that - it's a little silly but when you're really in the funk, and need to hear some outrageous laughter, the You Shake iLaugh will do the trick. The app works by using the accelerometer to detect motion. When you shake the phone, it gently it laughs. The harder you shake it, the harder it laughs - until it reaches an eye-watering hysterical laugh. It's really quite fun!
If you want it, get it while it's free and let us know what you think!