Context: My wife grew up in Guatemala. There one of her favorite things was a restaurant called "Pollo Campero" (literally, Country-style Chicken"). Well, they opened a few restaurants in the US. I was on a road trip, and passed by one such. I bought about 8 pieces, put them in ziplock bags, put them on ice in the cooler, and brought them home. She said it was the most romantic thing I have ever done.
Other than that, small decorations.
I've never been that big of a fan of most practical or functional gifts because they're often obsolete tech. It's cool to give someone something they use every day, but it's easy to just clutter up a drawer instead.
People mean well, and I appreciate the thought, but I've gotten lots of stuff from relatives who don't quite understand that disposable batteries are a hassle and I don't have random papers lying around that need organizing.