Tom Nook's Nephews is the name of a trophy found in Super Smash Bros. Brawl. It was revealed in a Japanese trailer. The model features Tom Nook and his nephews Timmy and Tommy. They also appear on the Smashville stage.
Description (Japanese Translation)
Here is Tom Nook and his nephews Timmy and Tommy who appear on the second floor of the Nookington's Department Store once you pay enough to maximize his store. They tend to say their sentences together but usually one or the other finishes his sentence last so you'll often hear a "...anks" or a "..wait". Tommy usually finishes his sentences after Timmy.