I buy my book covers from https://manausbooks.com/, I think they have some that would suit? (My only complaint about them is that my orders sometimes come shipped with cheerful bible verses included in the packaging, which I suspect your mother would find a feature rather than a bug!)

I haven't been to Ireland since 2009, so I don't know how useful my experiences are at this point, but if you'd like you can find my write-ups under https://ambyr.dreamwidth.org/tag/british+isles . Parts 1 and 2 are Ireland; after that we went to Scotland.