MK6PIN and Bonnevil69 are making replacement wireforms for the left ramp on Batman 66 (Premium) to replace the Perspex that came on the game. Bonnevil69 AKA Matt from Doom pinball fame, will be making and selling these ramps once tested and complete.
Go to here for more details:
https://pinside.com/pinball/forum/topic/where-to-get-wireform-made/page/2#post-3975045