Step 1: Materials....
Old Mag Light
1 AA Battery
Small piece of plastic that fits inside the mag light.
Needle nose pliers
Hot Glue gun
Step 2: Dismantile everything now!
Step 3: Step 2 Notes
Image 1: I'm not sure how many know this, but there is a spare bulb in the bottom of the light's cap. To get it all you must do is pull the spring off with pliers and the thing should fall out if tipped up side down.
Image 2: To get the "thing" out all you do is take a small flat head screw driver and pry them apart. There's is two parts to the "thing" one should fall out the back of the light. Save these.
Image 3: It you did what I said on image 2 you should have this!
Step 4: Prepare to glue!
Get you battery, THING, and small piece of plastic.
The piece of plastic I used was a syringe cap from one of my dads needles (diabetic).
I had to trim it a bit, but we will get to that.