This is a vintage Diddl Mouse plush toy wearing a sports outfit and oversized sneakers, created by German artist Thomas Goletz.

The Diddl Mouse plush toy is a soft, collectible stuffed animal modeled after the famous white jumping mouse character created by German artist Thomas Goletz in 1990.

The vintage gray Diddl mouse keychain in yellow overalls is a fantastic collector's piece. Because Thomas Goletz's classic character is traditionally bright white, the gray-furred variant is a much scarcer and highly sought-after edition from the Depesche line.

* Designed by Thomas Goletz and manufactured primarily by the German company Depesche. (Fun fact: The very first draft in 1990 was actually a kangaroo before becoming a mouse!) 

* History: The first plush figures were released around 1995, riding a massive wave of 1990s and 2000s nostalgic merchandise that included stationery, notepads, and bags