I'm the bride (well, BAM) and not changing my last name which is something I feel very strongly about. Several people have asked if I'm changing my name or not. One of my reception guests said she thought the DJ announced us as "[Groom first] and [Bride first] [Groom's last name]" at our entrance despite my specific instructions, which may be adding to the confusion. We've had a couple wedding gifts (off-registry) that were custom-engraved using Groom's last initial. I didn't mind so much the first time but now it's getting annoying. I'd like to discourage others from doing the same, or mailing us as "Mr. and Mrs. [Groom's last name]", which is a social convention I have a lot of animosity to when a woman makes a deliberate decision not to change her name (nothing against women that do change). Given that my husband and I have a lot of mutual friends/family on social media, do you think I should make an announcement that I'm not changing my name? Is there a polite way to word it?