The Cat Wand is a toy introduced in Nintendogs + Cats. As the name suggests, this toy is for cats. It can be bought from the BARC shop in all versions for $5. It looks almost like a long feather duster. Each version has its own exclusive color of Cat Wand:
NOTE: These are cat toys and dogs will ignore them. Do not buy a cat toy for your dog because your dog will not play with it.
3DS: "Kittens never get bored with this entrancing little feather."