What are his interests and hobbies?

How about a puzzle box with a small gift card inside? These were a big hit last year at Christmas.Puzzle boxes

I would do a gift card to a sporting goods store if he is sporty.

In our family we stopped giving gifts to all but immediate family once the nieces and nephews were past early childhood. We and our adult kids don't exchange today except with token gifts to show the little ones that Xmas is not just about them.

This may not work in your climate. I gave all the 20 somethings a delux telescoping snowbrush /ice scraper for their huge 4 x 4 trucks. They were in the $25 range. All 5 of them said they were happy to have a good tool to reach the top.. Not something they would treat themselves to. Hard to find anything for boys or girls that age. Gift cards for favorite restaurants usually brings a smile.

Something to do with all the microbreweries that seem to be popping up?

Yup, I'm with anoriginal. We gave up on gifts except for small children many years ago. Enjoy one another's company, share meals or wine, or events. But gifts?

A lottery ticket or a family history book.

Maybe tickets to a sporting event with a team he follows?

Annegriet, I have a nephew about the same age. Last year, I put together a book of some of the family’s favorite recipes...recipes that aren’t found online. He loved it. He also likes it when I send him baked goods. He works long hours so he likes having homemade cookies or quick breads on hand.

You guys gave great ideas! I understand that he's a little old but he's the only nephew and I can't let it go yet.

My nephew is a little older than that, but I've given him a coffee gift card, an REI gift card, an NFL team jersey for his favorite team, and last year a book of short day or one night hikes possible from home in his area that he could do either with or without his teen kids.

I think it's very kind and thoughtful of you to treat your grown nephew to gifts at Christmas. There is no way he does not appreciate the kindness from a beloved aunt.

I cannot warm up to gift cards tho I have had to utilize them in the past. They seem so impersonal!

You're never to old for gifts!! they don't have to cost a lot, but "gifties" as I call little gifts , are fun! It's not about being materialistic, it's about being thoughtful! it's only once a year!

Do you have some family treasures you can pass on to him? His grandfather's watch? Old photos or letters? Vintage holiday decorations?

Oh gosh so many things..

A donation to a charity in his name.

This, which is a puzzle for a wine bottle....you can't get to the bottle until you figure it out

Anything you can make...including cookies.

I think gift cards are great...my daughter loves Starbucks but it's a huge treat for her to buy her own. So she gets one of those every Christmas.

Also gift cards for restaurants and/or movies...great for date nite.

Socks. Men love these lately--very trendy for all ages...