Think outside the box for a couple who hasn't yet shared a special home; for them you could commission a drawing of the place of their rehearsal dinner, wedding or reception.
A friend of mine received a drawing of the historic home where they held their wedding as a wedding gift, and it is a piece that holds great sentimental value to her. Art this personal seems bound to become a family heirloom
In addition to the ink lab, you can find other custom home drawings on Etsy here and here. A colorful home portrait can be found here, here, here, here, here, here, and here on Etsy.