LED Tardis charm with built in battery holder (takes two AG6 batteries) and sized for 3mm or 5mm LEDs. Has hole for 6mm jump ring or earring attachments.

New design holds the battery better without cracking like the prior version did, and allows easier replacement of the batteries.

Print the battery holder and either the 3mm or 5mm top depending on the size of your LED. I use slow flashing/1Hz LEDs for the ones I make.

Once printed, put the two AG6 batteries in the battery holder (facing the same way) and slide the legs of the LED into the slots in the battery holder, making sure to align the positive leg of the LED to the positive face of the battery.The legs of the LEDs should feed through the holes in the bottom of the base. Once the LED is at the desired height, fold them over into the channels provided for them in the base. I like to put a dab of superglue on them to make things more sturdy.

If there is "extra" material inside the top near the opening, just scrape it out with a knife or pair of scissors.

Slide the battery holder into the top section, making sure to line the sides where the batteries stick out with the grooves in the top section - no soldering necessary! Friction will hold the bottom in place.