How to recycle a highlighter and put it to good use. First you will need a used highlighter and a led light and usb drive.

Step 1: Empty Out the Highlighter

First you want to get the used ink out of the highlighter and clean it out. Then you want to get a hacksaw blade and cut off the tip of the highlighter.

Step 2: Adding the Usb Drive

You then want to cut about a little more then half an inch off the back part of the highlight and this is for the usb drive. You can then put tape around the usb drive and place it carefully in the back part saving the piece you cut off to later use as a cover. Yes of course you will have to most likely take the usb drive out of its shell so I suggest you use an older one that you don't really need.

Step 3: Add Led

Once the tip is removed you can go ahead and add the led where the tip was. Make sure to keep it short enough for the cap to cover the whole tip of the led flashlight. If you can find one like the one shown the cap fits perfectly on it and with a little twist will turn it on.

Step 4: Make Sure It Works First

You may want to test the led before you put the cap on it.

Step 5: Add Cap

This is what it should look like when you add the cap and twist it on.

Step 6: Add Cover for Usb

You can then add the piece you cut off back to protect the usb drive if you want to. I didn't have any clear tape on hand so I used some tape I found in a first aid. But you can probably come up with a more creative way of securing this maybe adding a sleeve to the inside around the usb drive.