I know it’s been said before but vouchers? Eg Amazon or for Theatre or Cinema? I saw some in Debenhams that were a package for dinner and the Cinema. Flowers once a month? One of my most successful presents to my son and his wife , who sound similar to your family, was a voucher for a wine tasting to be held at their home, oh, and one year I bought them a day at a spa. My most successful present ever was for my husband And it was the chance to play the organ in Gloucester Cathedral when it was closed to the public. Look at Virgin Red Letter Days. I know quite a few people who have enjoyed Falconry Days because it is something different.