I don't know if the following are sights you would be interested in but they are on my list of "must do"s when I eventually get to Ireland.

1) Guinness brewery
2) Bushmills distillery
3) Belleek china works
4) Waterford crystal factory
5) as many small, local pubs as possible

Check a local bookstore for Irish tourism guides. There are a number of very good ones available.