Relationship Advice

I have 2 sister, one is 22 and the other is 24. They both have boyfriends they’ve been with for a number of years. I usually get 4 separate gifts for them for xmas. This year I’d like to get them combined gifts, one gift for each couple. Remember these are for my sisters and their boyfriends - not just friends of mine, so no “romantic” couples gift ideas please! haha
Do you have any good suggestions!?
Help!
Thanks!!