You can enjoy the many soft sensations from your vibrating device.
Search for 'Javoid' on the Android Market.
If your android device has a strong vibration motor, this app can create a nice way to relax from a stressful day.
Various Massage Modes:
Oscillate – Slow, Regular and Fast
G-Massage also includes a timer to stop the massage after a preset amount of time.
Helpful instructions/recommendations are included with the app.