Bring a card or small token gift.
Etiquette states that you have up to a year after the wedding to get someone a wedding gift.
* The best thing to do when someone does not buy a wedding gift for your son or daughter's wedding is to ignore it. Some of these guests may well give a wedding gift later and those that don't then they have no etiquette and just remember that when it's their turn if one of their children gets married. It's not worth the energy to bring it up and is not proper etiquette to do so.
you dont get him a gift you be a flipin jerk and not care
No, there is no correlation between the amount spent on the guests at the wedding reception and the cost of a gift given to the married couple. The bride's parents pay for most of the wedding and the groom's parents pay for a smaller part of the wedding. Any gift given by a guest (generous, large or small) should be well received.
Etiquette dictates up to one year.
Yes. Very.
I don't think you should if you weren't invited to the wedding. In polite society, gifts are NOT to be expected. If you want to send a gift it is up to you whether you get an invitation or not.
Etiquette dictates that when you, as a guest have sent a gift to thank the host they should at least phone you and thank you.
The correct way to address a gift is "Mr. & Mrs. James Smith". The couple is already married so it is proper to address it this way.
Only if your guest paid something toward the gift. Otherwise no.
Be the bigger person and use your wedding etiquette. Just because he dropped the ball does not mean that you have to.