Groomsmen gift ideas?

We are struggling to figure out what my fiancé should get his groomsmen as gifts. We wanna give them something they all like which is so hard! We don’t wanna do like knives with their name in it or sunglasses which is mostly what comes up when we google ideas. And flasks are out because we have that to them for the groomsmen proposal. Another idea is a custom whisky bottle but one of his friends just got that from another wedding he was in. Any ideas that are unique but something they would use?? This is so hard!