Want to go real cheap?
My beacon is resin so this is what i did.
Buy a solitare mag light from wal mart $5.00
It uses one AAA battery.
Find a small diameter glue stick or clear acrylic rod.
Measure diameters on both the mag light and the glue stick/acrylic rod.
Carefully drill coresponding size holes in the beacon. Drill press highly recommended. Drill the larger hole just deep enough to hold the screw on bulb/reflector assembly inside the beacon. Cut glue stick/acrylic rod to needed length.
I drilled a similar sized hole in the JP and used epoxy putty to hold the mag light body inside the JP. I have an access panel on the back to change batteries as needed.
The beacon will be a press fit onto the mag light. To turn on just twist it.
Not the best method but it works. ;)
Click to view slideshow.
http://i20.photobucket.com/albums/b2...cture_0480.jpg