Looking around for ways to light up the inside of my Wills signal cabin, I spotted a "canopy light" on Kytes Lights stand at Wycrail.
Consisting of 3 surface mount LEDs encased in a rubber strip made by 3M, the idea is that you feed 9 to 12v in one end and the LEDs illuminate. The strip is self adhesive on the back so can be fixed in place without any fuss.
Sadly, it was slightly too long for the cabin but peeling off the strip on the back, the copper tracks were easily visible. By cutting off the LED nearest the leads and then scraping away the glue and rubber over the tracks, it was possible to re-connect the leads so the remaining two lights came on.
Be warned, you have to do an awful lot of cleaning to get at the copper so it will accept solder. I thought just peeling away the rubber was enough but the tracks appear to be coated in something that resists fibreglass pencils and even the attentions of s scraper. I slid a scalpel blade along the stuff to peel an infinitesimal layer that still resisted solder away before a connection could be made.