The Display Shelves is a furniture item in Nintendogs + Cats that can be bought from Modo Home for $400 in all versions. It can be placed in one of the four corners of your home, and cats can sit on it.
In Toy Poodle & New Friends, it must be unlocked with 450 Owner Points or by playing 4 days.
In French Bulldog & New Friends, it is readily available.
In Golden Retriever & New Friends, it must be unlocked with 4,600 Owner Points or by playing 18 days.
3DS (NTSC): "Art connoisseurs are sure to love this set of display shelves."
3DS (PAL): "Art connoissuers are sure to love this fine set of display shelves."