Lost Memory Card Case and 5 Memory cards in Dublin/Dundrum

I lost my memory card case with all of my memory cards in it for my camera last week at the end of my trip to Dublin It is a small greyish black case with a Velcro opening with three slots in it to store the memory cards. I am desperately trying to find them. They contained pictures from my entire vacation, wedding, nephews birth, Christmas and more. I was downtown Dublin and in the Dundrum area and on the Luas Green line when I lost it.