Since you don't get to see him very often what about a homemade video of your family(you,hubs,children) that is if you have a video camera .
Maybe you could write him a letter from your heart telling him how much he means to you and then frame it . If your not able to get a frame ,use one that you already have another picture in,you can always replace it later.
Jana ,you are a great photographer so how about a photo collage of your family and /or photo's of thing's that make you think of your dad and all the special thing's he did for you growing up.
Maybe you could make him a shadow box using thing's that you have there at home and in the garage that reflect his hobbies ,thing's that you and he did/do together like did he take you fishing (I'm sure hubby has a bobber to spare) took you camping look for a brochure online that you can scan and place in the shadow box ,took you on your first hunting trip ( a photo marking the moment)
I may think of more . Hope this helps .Just think of gifts from your heart.