Vote for JackANDJude's "Tilt Trigger" http://littlebits.cc/bitlab/bits/tilt-trigger
. To make a simple, non trigger, tilt switch, view the project called "Tilt Switch from A Button!"
Assemble this circuit:
power + Proto Module (TILT) + (A0) Arduino (d9) + wire + speaker
Mounting boards don't fit inside my small coffee can, so I used a Brick Adapter to keep the power + Proto + Arduino assembled.
Upload the Musical Timer.ino sketch to your Arduino. Remember to include the pitches.h file in the same folder as the .ino file.
Decorate a plastic cylinder that has a lid. I used a small plastic coffee can.
Stick the tilt trigger module on the lid. Turn on the circuit. Close the lid.