Summary

A remix of a reindeer to fit a 3mm LED (+ sleigh (see sources))
See instructions for more info.

Instructions

Needed:
1 3D printed reindeer
1 CR2032 battery
1 3mm LED
some left over cable
soldering iron
patience :)
Instructions:

Print the STL file
clean up support (this includes the hole from the nose to the back)
solder some cable to the LED so you can run it to the back (where the battery sits). (pro tip: use heatshrink tube to protect the LED leads).
run the cable + LED through the hole.
secure the battery in the slot, making sure that the cable is touching the battery (make sure the positive and negative leads match).
place the lid on the battery slot.
Side notes:
- Be REALLY carefull with the antlers when cleaning the support and working on the print. They are pretty delicate.
- Print in the pictures was made using an UP! mini using ABS, please upload your makes to show it also works on other printers with other filaments.
- The battery lid doesn't fit 100%, some fiddling may be required.