Finding a present for your son-in-law might be difficult if you've only known your child's new spouse for a few years. Here are a few of our favorites. You get another family member when your kid marries. Someone to learn about, relate to and fall in love with. Coming up with thoughtful first father's day gifts for son-in-law is a part of that process. We've compiled a list of some of our favorite presents for a son-in-law (to commemorate his first father's day with his kids) for you to consider. Whether you want to give something little or something more lavish, we have the greatest gift ideas for your son-in-law right here.