I just picked up the Puppy Paw Stick the sort the of hard way (got super lucky on treasure, only took 3x resets)
Keep in mind the innocent value is 1 on all unique innocents so change that first before changing the ID, oh and its default subdued so check that off first as well
ID vale is 210 for the Cat Burglar innocent.
Yes you can now slap that innocent on your favorite etc item so anyone can use it
If are dead set on any other unique innocents change the ID up and down from base 210 I'm not that far into the post game to even know what is good =)
Again, thanks Black X for your character editor, it's a bit bare bones yes but one has to start someplace!