Take a look at the result in the video below.
Step 1: Supplies
1 Vending Machine Bubble (from vending machine prizes)
1 flashing LED
1 cr2023 batter holder
1 220ohm resistor
1 small switch
1 ornament hook
2 small nails
Step 2: Wire the Circuit
The circuit is pretty basic, it's an LED throwie with a resistor and a switch, to make the battery last longer.
Step 3: Diffuse the Toy Bubble
Next you want to diffuse the LED light inside of the toy bubble. I used some wax paper. You could spray the inside with opaque spray paint.
Step 4: Close Up the Bottom
Step 5: Add an Ornament Hook and Add Leads
Step 6: Enjoy the Light
Stay tuned for more geek ornaments, post your own in the comments.