Interior lights

[Kieron g]

The interior light lenses on the B posts on the my recently acquired BX have turned to powder.
I'm not having much luck on eBay where I usually source odds and ends like this and wondering if there is and adaptation to a more easily sourced better quality part that seasoned BX owners know about.
Chevronics are out of stock but even when they had these were listed at around £50.
Any ideas / leads would be much appreciated. Thanks

[Tim Leech]

Unfortunately they all do it, so its a case of keeping an eye for some