That would depend on his age and interests. But here are some ideas:
I'm not sure that it makes sense to give a boyfriend a gift on Father's Day. If they aren't the father of your children, it wouldn't be appropriate.
A really nice smelling candle, that is always a great gift!
A gun?
A gift card to a restaurant
Buy him a gift! than he will remember that he didn't give you one.
Golf clubs are a good gift for you to give to your friend.
to show him that you love him
by showing the gift that god give you
A gift you should give your boyfriend is:a) something nice and thoughtfulb) something they would be interested inc) and nothing feminine
Sure, why not? Anyone can give a bride a wedding gift.
give her your love and a big gift give her your love and a big gift
I think good gift to give is a gift card that way the person can get what they want