See here:
https://www.specsavers.co.uk/hearing/hearing-aids/custom-listening
If you read the details it says they offer either custom tips or in ear monitors, I haven't checked in store but it seems they will do them for any
https://www.specsavers.co.uk/hearing/hearing-aids/custom-listening
If you read the details it says they offer either custom tips or in ear monitors, I haven't checked in store but it seems they will do them for any