You know, there are times when I WISH someone would put what they actually 'want' on their invitations

and then again I understand why people don't.
However, in your case of having a combined party, let's think about this and see if we come up with a solution ...
How about creating your invitations with a "construction" theme - Something to the effect of you and your hubby have been "constructing" a happy marriage for 10 years and now you plan on "constructing" a nicer image for your home (hey - ideas are flowing through my brain now!!!) This way people know the "theme" of the party and will more than likely choose appropriate gifts.
I'll see what I can come up with wording wise for the invites and I'll post back -- gotta get some input from hubby
(you wouldn't be opposed to a Bob the Builder party would you?

) hee hee hee hee

The Party Lady is working now!!!