I suspect the main things I'll get (given past precedent) are
genealogical books and Best Buy gift cards.
Knowing that it's impossible to order anything for the family, but
they enjoy the stuff I think of: this year, it's going to be pictures
of the Farm:
http://sneakers.pair.com/roots/addons/gif/farm.gif
for those who grew up there, Target gift cards for the ones who can
think of everything to buy but haven't bought it yet (my nephews,
mainly), and Savings Bonds for the little ones (read: stillinschool
niece and upcoming grandnephew). As I remember, one of my nephews
cashed the whole stack in for a pretty good down payment on a car.
They understood they were for when they got big; anyway, Christopher
told me he had enough toys in the first place. I always annoyed Mom by
saying "Christopher has more farm machinery than Pop and it's in
better shape." <grin/duck>
Pop used to be hard to buy for, but I invariably thought of good
surprises: one year, a tractor history book; another, a book of
artwork of the Santa Fe Railway.
It helps if you own stock and you visit the company stores... when I
owned Morton, I had them send Mom a set of Morton Salt Girl coffee
mugs. They also have John Deere iced tea glasses.
PS: Unless they have a sense of humor, avoid sending the chocolate
caskets on the Batesville Casket Company Web site. (Yes, a real
purchasable prodcut.)