Hello hello! I always see these movies with old houses with great history of family life. Usually it is something like this, which the new family sees when moving in or they could be renemessing their already adult kids, or perhaps still be in the process of following their children grow.

Found in: Wall decorations and posters / decals
Price: 0 simoleons
Comes in four colors: White, light brown, dark brown and black to help match the wall.

Requires Cats & Dogs due to me being a novice when it comes to making CC.
This is a recolor of the scratch marks that came in Cats & Dogs.

Please comment if you find any trouble. Use bb.moveobjects to place.

Additional Credits:
Simlish font credited to SIMale: http://learnsimlish.blogspot.com/p/simlish-font.html