Some things are sacrosanct. Like, for instance, the classic gingerbread house at Christmas time. You can take some liberties with said house, of course. For instance, you can certainly make the gingerbread house out of graham crackers and pass it off as a "gingerbread house". You can also take ginger snaps and get creative with those. Or pretzels. So long as you're in the right color range with the house and use peppermint candy and white icing as part of your embellishments, you're golden.
What you can't do, however, is put the same house form you sell at Christmas in a different box with green and orange icing and pawn it off as a "Haunted House." Hello? Haunted houses aren't gingerbread. They're moldy bread. Geez.... ->
(PS: I love the photo but hate that the words are soft. The phone camera is getting old)
(PPS: I have a really yummy recipe for actual ginger bread. If you ask, I'll post it.)