One of my projects that I'm proud of is a light in my toolhead to light up the shellplate. I made it about 8 yrs ago, before they started selling the kits for like $40. Mine cost me $6.12 and consists of a 2-pack of LED tail light bulbs (1 spare), a 110v to 12v transformer, switch, 20 gauge fired Shotgun shell, piece of wood, ziptie and a fiber washer.
I use the shotgun shell as the mount and added the fiber washer as some of my toolheads have a bigger center hole than the 20 gauge's rim, drilled out the flashhole to run wire through and soldered it to the LED tail light bulb. Mounted the transformer to my press with a ziptie and added a switch to turn it on and off. The wood piece I used to mount the on-off switch as I just feel that sparks and gunpowder don't play well together!
LED and shotgun shell mount wired to the transformer and lit to verify connection:
Light Mounted in Toolhead. Assy. pulls out easily to swap toolheads:
Black line is ziptie holding the transformer just out of picture showing just how much it lights up the shellplate:
On-Off switch mounted on a wood block for safety behind my custom wood toolholder:
