This instructable walks you through the steps of creating and installing a unit that will play any audio for up to 20 seconds when a toilet is flushed. The audio is easily recorded onto the unit using a built in microphone.
Here is a video of the finished product:http://www.youtube.com/watch?v=JopLNsH3p2E&feature=youtu.beTools + Supplies:Radio Shack Recording Module
Hot Glue Gun
9 Volt Battery
Momentary Switch (Push Button)
Project Box (I used a plastic 16mm film container)
Exacto KnifeOptional but useful
Third Hand Soldering Station