When you get to Dublin, get your butt over to a B&Q (I think they must also have them in Eire).
Pick up the one that looks like this:
With this one you can plug in American and German contour plugs and Schuko (bypassing ground - dangerous for long term use).
instead of the more expensive MK-brand that looks like this:
which will restrict you to Europlugs and two-pin American plugs only.
I've also seen this MUCH safer option:
(MAPLIN). Look in Electrical for the code # TZ55K. Maplin does deliver outside the UK so you could probably order one of those before your trip. It is fused with a 13-amp BS1363 plug fuse.
Toss that relic with the aluminium foil in the trash!
[This message has been edited by SvenNYC (edited 01-13-2003).]