I frequently need to pass through there to get in the shop, I get tired of turning on and off the overhead lights.
He has a switch mount motion detector in his mouth and two 12 volt bulbs for eyes.
Step 1: Gather Your Stuff
Total cost about 5 dollars US.
Step 2: Cut the Cans
I wish I had taken a little more but he looks mostly proportional, it's hard to judge until all the extras are added.
Step 3: Electrics
An on off switch was added so in the long days of summer we can turn him off, I chose to use heat shrink wrap on all my connections in case the cats knock him over.
The second photo was changed so the detector was in the front of the robot so he is more sensitive to movement.
I removed some of the detector covering this was un-necessary it did make him very sensitive to movement though.
Step 4: Paint
The eyes were taped off so they could be kept white.
His eyes are made from more 12 volt lighting parts those screens hung over a small spot lamp.
Step 5: Do Dads
The feet are from a differential (second hand)
As you can see his mouth is an old speaker cover.