This Sniper Tower mod for Judge Dredd is close to final and will be posted either tonight or some time tomorrow. [[EDIT: It is now available here: https://pinside.com/pinball/market/shops/1104-medisinyl-mods/01354-interactive-judge-dredd-sniper-tower-mod-led ]]
It replaces the Sniper Tower plastic and simply installs with the same factory screws and a supplied #555 SMD to replace the Sniper insert bulb (no permanent modification required).
This mod is hand painted and lights up when the ball whips by the tower after a right ramp shot, it also lights after a left ramp shot, and of course strobes during Sniper Mode ("shoot the sniper tower" can finally make sense ). During Manhunt Millions, the tower flashes in sync with the sound of the bullets. In addition to any other time the Sniper insert lights.
Photos below show some of the development progress. I started by making a mere triangle and used that to map out the shape of the original plastic, then began to build the tower. Revision led to expanding on the tower once I had a better idea of the room I had to work with, also revisions to strengthen the fence (the first version was clearly very weak and purposely broken in testing). I also thickened and angled the base of the tower to have it sit perfectly. The little black box is attached behind the window and isolates the LED and tower insert from other light. There's a cut-out behind the fence in front of the tower that allows light to shine up on the tower and through the fence (not present on earlier versions).
Also pictured are the various color options (the first painted prototype is shown--I've since made the silhouette of the man solid, but the look is similar). As usual, it's hard to photograph LEDs, but in person there is better definition.
Here's a quick clip that shows some of the interaction with the game--I'll likely take another with a different color soon: