It's dead easy if you have even the most basic making skills and great to try if you've never done any electronics before. Plus there's a little bit of fun hacking apart a Series A USB plug and using the guts!
- A couple of old packaging bottle caps (shower bottle and single serving drinks bottle, or something similar)
- Some thick tin foil (take out tray, or aluminum roofing / flashing tape) although thin foil will work
- A cheap USB Laptop light (or the appropriate LED, wire, correct resistor and USB Plug
- A small piece of clear plastic sheet (OHP sheet or bit of old packaging)
- Some cardboard and or foamcore (not necessary but nice)
- Some low value loose change
- Soldering iron
- Hot Melt Glue gun
- Black and silver paint (spray or markers)
- About 1.5 to 2 hours to spare doing this project
Step 1: Find a couple of suitable bottle caps
Given the shampoo only cost about 50p for 750ml, it would be worth buying a bottle just to use the cap and then keeping the shampoo as hand wash or shampoo refill.
Note the fact that the cap is translucent, this is quite important, because in the real spotlight there is quite a bit of light leakage through the cooling vents at the side of the lamp, and the translucent cap lets us mimic this effect rather nicely.
The single serving drinks sports cap is nice because the push pull closure also rotates, which means that the finished spotlight will be able to rotate, although this is not really necessary, of course unlike the real one, your USB spotlight won't need a crane to turn it round.