I know you said you already did the picture thing but something I did was take my husband's favorite picture of our daughter and blew it up to poster size for his work. I actually took his top 3 pictures. I had it laminated (you can do all of this at a Kinkos for about $20 - $25). He hung it up in his cubical/office at work and loves it. It's like a life-sized picture and he said he loves that it's so big because it makes him excited to get home and see her and also loves that she's so big because he feels like he's not missing much of her during the day. I did the same thing for my brother for his birthday last year. I took his favorite papa & daughter picture of them out in the snow since they're snow bunnies. He has a gear room where he keeps his skis and he put it there so that he can see it everytime he gets ready to go skiing with her. It's like his own personal ski poster.
Another gift I got was a gift card to a book store. I told my husband that this was a gift for him because he could take our daughter to the book store and the two of them could pick out a book together and have a bit of bonding time. There's an Eric Carle book that's title something like 'Papa, Please Get the Moon For me.' It's a super sweet book and it's one that the two picked out and my husband loves to read it to her. He feel's like it's his little one on one time with our daughter and their special bond.
Good luck.