Bound to be somebody selling them on eBay.
They used to be called Stick-a-Soles, didn't they?
Funnily enough I need something like that to stop my slippers slipping (I guess that's why they are called slippers) on my painted stairs.
Here you are. Just did a quick google and there's loads of people selling them. Here's one, free delivery:
Timpson's are rather more expensive, but may of course be better:
Edited 1 time(s). Last edit was 2017:02:16:12:22:31 by Sue.