Here's my MIL's true calico, Violet. Very blotchy, and her colors don't mingle.
(Violet had her tail docked last week, similar to what's happening to Chris H's Ebby)



I think Freida is a Tortie & white. (just as gorgeous)


My take on the calico kitten's inquiry is that adopter is 'matching'.
Dig deep enough and you'll probably find out that this person had a cat once, that looked that specific way.

I don't understand why people want replicas of former cats, but I remember going through that very stage myself, once.

Just like cloning a cat, matching won't make a cat act the same way as your beloved pet.

We get a lot of people matching at Siamese Rescue.