There's a company called Alden arts, they do dog jewellery, brooches, glasses case etc. I ordered some on-line, and they also had a stand at Discover Dogs.
http://www.alden-arts.co.uk.liberty
Edited to add: I always find it difficult to buy for men, but you could make up a hamper for him; containing all the nice foods they like such as Stilton, Smoked Salmon, Pate, Port, Whiskey etc etc.
:)