Silent Toggle Widget 

Silent Mode Toggle is a home screen widget that lets you switch between sound, silent and vibrate modes.
Android Lollipop 5.0+ users please note that the introduction of Priority Mode means that switching to silent may not work correctly on all devices and in this case the app will switch between sound, priority and vibrate modes.

Custom icons can be used and in the current release need to be manually copied to the correct location which for most devices is:

Reference application . : Reference Application, 

Features:

1. Admob integrated.
2. Attractive User Interface.
3. 3 theme is there.
4. Easy widget.
5. Choose your icon theme. Eaither keep square, round or transperent.
6. work offline, There is no need for internet connection.
7. Easy to Reskin.
8. Support 24×7.
9. Well Documented.

Demo apk file : Demo