After a year of watching other people lock up carts anytime, I desided,I want one. Two hours later, James Bond's Cart Locker was born.
Step 1: Step 1: the Case
To Make your case to hold the electronics, Take a normal bic pen(shown in photo) and remove and save everything.
Step 2: Electronics
Take a pair of ear buds and a telescopic antenna. Cut the headphone jack off of the ear buds, leaving 1 inch of wire. Strip ONLY ONE wire so there is 1cm of bare wire. Solder or wrap the wire to connect it to the antenna. Cover this connection with electrical tape.
Step 3: Connect It All Together
Slide your assembled electronics in the pen until the head jack wont go any further. Tape the jack so that it stays there. Secure the antenna so that it stays in place but will telescope.
Step 4: The Final Touch
To Finish this up you can;
1.) Spray paint
2.) Cap the head phone jack with a piece of drinking straw
3.) Add anything else to make it look exactly like a normal pen.
P.S. if you have any Ideas or comments please post them.
Step 5: Making It Work
Download the joke file and add it to your MP3 player or ipod. Plug the pen's jack into the player's port and extend antenna. Play the file. Any cart with this tech will lock up. Not all carts do this. Stop playing to unlock.
If you can't download it, It's a 7800hz pulse tone. Search Google for " NCH Tone Generator. Play around with it for awhile and you'll get it right.
Step 6: Enjoy
Enjoy your new cart locker and have fun.
P.S. Also post if my instructions could be clairified