When my sister asked me to make her a "change of address" card for her new home, I made quite a few prototypes. After she chose the one she liked, I mass-produced that style, but used the other prototypes as cards to send when someone purchased a new home.
Impression Obsession's "New Home" clear stamp set was all I needed. This is the inside of the "window card" pictured previously. It was colored with Copics.