You might give some consideration to this:
 
Your new ferret "Bouncer" will likely get bolder and bolder as gets to
know you a little better each day and conversely, you him.
 
May I suggest the name "Bolder" since that's the English meaning of your
German name: Feldspars.
 
However, the real meaning of your name is like a really large rock in a
field, such as a boulder.  So therefore your ferret could be named
"Boulder", for that is the true meaning of your name.
 
Whadaya tink?  Does "Boulder" do it for you.   Ach, ja, ja.
 
                                           FRETTCHEN VERGNUEGEN!
 
Edward Frettchenvergnuegen Lipinski
[Posted in FML issue 1815]