I'll show you, how to build a electric game easy and fun. A dollar store should have all this items.
Step 1: Materials
= copper wires
= piece of wood
Step 2: Connect the Wires
1 = 6cm
1 = 35cm
connect the 35cm wires to the ( - ) side battery and tape it. and place the three battery into the alarm system with the 6cm to the ( + ) side of the battery. picture as show below.
Step 3: Measure the Copper Wires
1 = 40cm
1 = 8cm
Make any shape or twist as you like
Step 4: Nail
Step 5: Tape
How this work is when the ( - ) and ( + ) battery touch, it will set of the alarm system. make you turn on the alarm. For more info how this work please watch the video thanks