The nose-pieces on my Tifosi cycling specs suffer the same fate being, as they are, fabricated from natural rubber.
The good news however, is that spares are available for around £2.99 a pop. As opposed to £60.00 for a pair of new specs.
I'm not quite sure how this happened, but I've ended up with three pairs of the specs anyway. I think may've been something to do with reading something about my model of choice being discontinued, so hunting around and finding a replacement pair.
Then having forgotten that I'd done so......
ETA - Reading Helly's posts
passim re DAB radio, has contributed in no small way in my not investing in one.
I'll get my BBC6 music fix online while I sit at the pooter, and sadly do without in the kitchen.