I saw this in our local Home Sense and thought it looked like a great project for a laser cutter or 3D printer:
First off I drew it up in Sketchup
I made a plate that could be cut on my laser cutter (when it is finished)
but ultimately scaled it down and printed the pieces individually.
Here is the finished article, with an orange LED tea light inside it, which I believe was from a pack of 8 bought at Wilko for £2.00.
I have also uploaded the Sketchup source as well as the STL files to Thingiverse.
I also decided to print Makies Jack-O-Lantern from Thingiverse.
Here is my one with an LED tea light inside it:
