This little device hepls you know when people try to pilfer your money.
Step 1: Get a Musical Card.
Get a birthday card that plays music. Remove the electronic noisemaker from it.
Step 2: Attach
Attach it to the inside of an altoids tin so that it goes off when the lid is opened.
Step 3: Listen for Thieves.
Now, you have a nifty cash stasher.When opened, it will start playing music. It will help you keep those pesky kids outta your cash.