we didn't last year but i'm sending them a container of home made dog biscuits (for their dog penny) and a chili's gift card :) they asked for nothing so we're going simple!
I usually buy my inlaws an expensive bottle of wine every year for Christmas. It has become kind of a tradition & they look forward to it every year! Lol
No mainly because they live in Texas so i'm not around them to no their likes/dislikes so the past two years I just made them photo albums with pictures of the kids. This year we're going to be doing homemade gifts though.
I'm not sure yet what we will give them this year. Last year I made FIL a photo collage in the shape of a W. (Initial of his last name) and I made MIL a wooden picture of my son. They loved them.