Eevee

'Eevee' figure in the Sarah Jane Adventures (middle-left of image)

Eevee was the namesake thing in Let's Go Eevee. (HOMEVID: Sil and the Devil Seeds of Arodor)

A figure of Eevee can be seen on a shelf on top of a box in the attic of Sarah Jane Smith's House, 13 Bannerman Road. The figure can be seen clearest for a few seconds in TV: The Curse of Clyde Langer (TV story) at timestamp 13:29.