K.M.
R.-
My husband is the same- he doesn't like jewelry, etc. So, for our 20th anniversary, I bought him a "pocket piece". It's a small decorative token (no bigger than a 5o cent piece) that I had engraved. He always keeps it with him in his pocket and (hopefully :)) this reminds him of me and how much I love him! You can find them at jewelry stores made of gold, silver, etc.
Hope this helps-
K. M.