What a nice idea! You're a good friend
I guess before making a suggestion, I would ask a couple of questions. Are they are 'new' NH residents, or are they transplanted here from someplace else? I ask because when we moved the family half-way across the country, one of our favorite Christmas gifts was a box of "home" (things that we just couldn't find regularly west of the Mississippi). Silly things like FLUFF, real maple syrup, etc.)
I would also ask how active they are. Lots of folks like to stay active but don't enjoy (or can't be out in) the cold for long periods due to health conditions. For that type, I would suggest maybe a gift certificate to Vertical Dreams, an indoor rock/wall climbing place in Manchester.
Seems that there are new vinyards opening throughout NH. My personal favorite is Zorvino. They have dinners & events throughout the year with various themes, as well as a tasting room that is open daily. In January, they are having another Murder Mystery, which promises to be a great time with special guests.
Looking forward to other suggestions...