You will need:
about 2 inches of a wide cable with no wires in it
2 ringing alarms
1 piece of cardboard [about 1X4inches]
about 1.5 feet of wire [1/2 red, 1/2 black]
1 2.7 volt capacitor [this will boost the small battery]
1 1-volt lithium battery
1 regular size paperclip
2 tiny pieces of scrap metal [you can find in alleys]
wire tape [very handy and keeps you safe from shocks]
plastic clip [handy if wires need to be pinched together to complete the circuit]
Step 1: Let's Get Started!
Start by twisting the wires on the two ringers.
Step 2: Put On The Battery
If no sound: check to see if the battery is dead or if the circuit is incomplete.
If faint buzz: flip the battery over to the - side or the + side.
[THE ORANGE CLIP IS THERE OVER THE BATTERY BECAUSE I HAD TROUBLE ATTACHING THE BATTERY TO THE WIRE. IT HELPED]