Ferret cookie cutters are made by Ferretware (I've bought one there!
it's a nice large size!)
 
Go to ferretware.com click on Just For Fun items then arrow down to the
Misc.  section.  You'll find copper ferret cookie cutters.
 
SpongePants Bob
Valerie has a SPB print sleeper on e-bay #2044648567
 
Harry Potter
Ferretwise shelter has a Harry Potter sleeper on e-bay #2044492225
[Posted in FML issue 3872]