Shopping for my dad

It's hard to figure out what to get my dad for Christmas, since a lot of the things that he liked when I was growing up he does not do anymore and he has a very large collection of eagles now. I'm sure I'll get him an eagle, and I will be getting him a box of cordial cherries as well since I always make sure to get him a box of those, but I am not sure what to get him other than that. I went looking on eBay and found a few Army coffee mugs and things, so I am pondering one of them maybe.