You will need these parts in addition to the materials from Inventables to complete this project.
"USB Cable":https://amzn.com/B009GUMVXE
"LED Light":https://amzn.com/B00TMYHM2E
Load this "Easel link":http://easel.inventables.com/projects/VGem3SSHnTVcCeYd6fmJFw to cut out the Frame using an 1/8" bit.
Load this "Easel link":http://easel.inventables.com/projects/ciIU-VVebAuOsZXi8N42EQ to cut out the Cap using a 1/16" bit.
Tip: You can use materials of various thickness for this part as long as you adjust the thickness in the Easel file. So feel free to experiment!
Separate the parts, and sand them down as needed.
Insert the USB cord in the slot and assemble the frame.
Depending on the tolerance, the Frame should hold the Cap in by friction. If not, you can use adhesive.
Insert the LED light in the USB port, and plug the other end of the cable in your spare phone charger.
Tip: You can make a paper cut out to cover the hole in the back for a more even diffusing of the light.