I have a friend who has 3x Current Skoda Flip Keys

The 3-Button type

They are from vehicles which have been salvaged and scrapped (he has them from work, along with numerous others for other brands too) - as a result the Blades are obviously no use, but the remote will work if recoded, and i'm sure the blades could be swapped to good, usable ones

How much would these keys be worth each? Roughly?

Whatever anyone is willing to pay, but not a lot as once coded they cannot be recoded - However, I'm interested in a Skoda one...