In order to make a door alarm out of a mouse trap, you will need the following materials: a mouse trap, a clamp, 2 screws, caps, a piece of string, scissors, a screw driver, a drill bit, a hex-head screw, an a piece of aluminum from a soda pop can.
Drill a hole in the mousetrap at the point where the spring hits, when it snaps. Secure the striker with a clamp. Cut a piece of aluminum, and cut 2 slits in it. Remove the excess. It should look like a tiny T.
Make a hole in the aluminum for the screw. Fold both sides up. Screw the aluminum piece into the hole on your trap. Cut off 2-4 caps. Place the caps into the cap holder. Fold the aluminum over it.
Tie a trap string to the trap and connect it to the door. Make the string long enough to allow for your hand.
Start your career in Graphic Design with the WonderHowTo's Beginners’s Guide to Photoshop Course