Wedding Invitation- Question on Gifts?

That's interesting. As you might already know, it's up to your guests to decide what they purchase for you, so when they contact your RSVP person to ask about your preference in gifts, that person could tell them you would prefer Xmas ornaments. But if that's what you want, you should have something set up (like a registry) for them to go on & purchase. Summer isn't really the time when websites are booming with Xmas ornaments & I think it would be causing your guests to have to search high & low for what you want. It should be more simple than that. If they inquire about a gift, they should be given registry information that's basically a point, click, and buy.