A hiding spot for money at the bottom of the can
Step 1: Cut the Pringles Can
Cut it near the bottom
Step 2: Arduino
you will need a battery 7 hookup wires a 8ohm speaker 1 photocell 1 4.7k ohm resistor a breadboard and a 100 ohm resistor.
Step 3: Where to Find the Fritzing Diagram
you can find the diagram at arduino.cc under examples. It is called pitch follower. If hooked up right when the photocell is in light it will make an annoying sound. Then after everything is done put it in the top of the can