Where are you visiting ?
Just remember hotels frown upon guests removing electrical fittings
Any DIY store carries a range of electrical fittings i.e. plugs, sockets, switches, etc etc.
If you want the full range try the 'big box' stores like Woodie's DIY, B&Q, Homebase etc.
For the most part, the fittings are identical to the UK. Only major differences are found on the distribution board i.e. radials rather than rings and different fuses etc
We had a major problem with tourist taking cast iron finger post direction signs in the West of Ireland a few years ago. Some guy was arrested in Shannon airport trying to check in a huge cast iron sign !!
I'll keep an eye out for obscure stories about a strange tourist caught trying to remove unusual 1960s light switches from a pub in Kerry
Anyway, if you're around give me an e-mail / PM me on the board. Could always meet up for a pint!