Several people have asked so I'll publicly post rather than privately:
 
Kansas Bank Note Company
PO Box 360
Fredonia, Kansas  66736
 
They have 4 ferret pix to choose from, or, for a $25 setup fee, you
can send them a drawing of your own and they will put that on your
checks.
 
Debbie Riccio
WNYFLFA
[Posted in FML issue 1192]