Wow, Alan! That's pretty impressive! Meeting the Lord Mayor of Dublin & other dignitaries.

I would imagine that the Lord Mayor & his party would be familiar with the saffron kilt and kilts in general, however, I would suggest the Irish National Tartan. The Scottish Lion has kilts in the Irish National available for rent (along with the full evening attire):

http://www.scottishlion.com/kiltrentals.html

You might see if the Scottish Lion (or another kilt rental place) would rent just the kilt.

I'm sure there are other places that have it available as well. The Irish National Tartan would be a nice touch, and would make a nice "conversation starter", since you would be wearing it in honour of the Lord Mayor's visit.

Cheers,

Todd