The weasel is unique, but not the only one of its kind. There are more.
Currently we have knowledge of:
Das wunderbare Wiesel
From Hamburg, asocciated with the Wunderbare Welt des Wissens. The Wunderbares Wiesel is very curious and loves festivals.
There is no further intelligence on or with Osvaldo. May be living in munich.
Little is known about Nanderez Wiesel. Except that it´s from Spain and features an enormous moustache. Olè!
A franconian Wiesel living in Nuremburg with Mittenmank. Paraplü has his own blog: http://blogwieselblog.wordpress.com/
On occasion he sports a fancy tie.
A bavarian weasel located in munich, may be sighted at Hutchingers.
Yet another weasel who is supposed to be in Braunschweig with Big Bird. While traveling, Nochen wears a checkered scarf.
Liberated by the WTF (Weasel Task Force) in 2014, this weasel lived in Hamburg. Last seen while traveling to Switzerland in early 2015, vanished shortly after. May now live undercover somewhere in the Alpes.
An elderly weasel madame, still unnamed, living in the south of Lower Saxony. Wears earrings or other small yet stylish jewellery. Liberated by the WTF in 2014.
Wieselita lives at Katjas Blog. She seems a bit shy, but this may be a false impression. She strongly refuses to separate from her green scarf, which she uses on occasion like a security blanket. Wieselita was liberated from eBay by the WTF in 2014.
There may be more…