I know everyone doesn't follow the mod thread, but this is an easy and affordable mod anyone can do to improve the look of the orb shot.
1. Flipped the current led board upside down so it shine upward.
2. I drilled a small hole in the plastic to allow the light from LED to shine through
3.I added a small globe from a string of lights and lightly sanded it to give it a cloudy appearance.
4. I added a colored piece of plastic/paper as a diffuser (I chose blue for now).
Edited to add a link to the mod thread that has more details.
https://pinside.com/pinball/forum/topic/iron-maiden-mod-thread. (Page 2)
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